Datasets tagged usgs in Earth Engine

• ASTER L1T Radiance

  The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a multispectral imager that was launched on board NASA's Terra spacecraft in December, 1999. ASTER can collect data in 14 spectral bands from the visible to the thermal infrared. Each scene covers an area of ...

  vnir tir swir nir radiance thermal

• EO-1 Hyperion Hyperspectral Imager

  Hyperion is a high resolution hyperspectral imager producing 220 unique spectral channels ranging from 0.357 to 2.576 micrometers with a 10-nm bandwidth. The instrument operates in a pushbroom fashion, with a spatial resolution of 30 meters for all bands and a standard scene width of ...

  hyperspectral usgs hyperion eo-1

• LANDFIRE FRG (Fire Regime Groups) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE MFRI (Mean Fire Return Interval) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE PLS (Percent Low-severity Fire) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE PMS (Percent of Mixed-severity Fire) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE PRS (Percent of Replacement-severity Fire) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE SClass (Succession Classes) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE VCC (Vegetation Condition Class) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE VDep (Vegetation Departure) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. Landfire (LF) Historical fire regimes, intervals, and ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE BPS (Biophysical Settings) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE ESP AK (Environmental Site Potential) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE ESP CONUS (Environmental Site Potential) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE ESP HI (Environmental Site Potential) v1.2.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE EVC (Existing Vegetation Cover) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE EVH (Existing Vegetation Height) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• LANDFIRE EVT (Existing Vegetation Type) v1.4.0

  LANDFIRE (LF), Landscape Fire and Resource Management Planning Tools, is a shared program between the wildland fire management programs of the U.S. Department of Agriculture's Forest Service, U.S. Department of the Interior's Geological Survey, and The Nature Conservancy. LANDFIRE (LF) layers are created using predictive ...

  vegetation fire wildfire usgs usda doi

• Landsat Global Land Survey 1975 Mosaic

  The Global Land Survey (GLS) 1975 is a global collection of imagery from the Landsat Multispectral Scanner (MSS). Most scenes were acquired by Landsat 1-3 in 1972-1983. A few gaps in the Landsat 1-3 data have been filled with scenes acquired by Landsat 4-5 during ...

  global radiance usgs gls landsat

• Landsat Global Land Survey 2005, Landsat 5+7 scenes

  The GLS2005 data set is a collection of 9500 orthorectified leaf-on medium-resolution satellite images collected between 2004 and 2007 and covering the Earth's land masses. GLS2005 uses mainly Landsat 5 and gap-filled Landsat 7 data with EO-1 ALI and Terra ASTER data filling in any ...

  radiance landsat usgs gls

• Landsat Global Land Survey 2005, Landsat 5 scenes

  The GLS2005 data set is a collection of 9500 orthorectified leaf-on medium-resolution satellite images collected between 2004 and 2007 and covering the Earth's land masses. GLS2005 uses mainly Landsat 5 and gap-filled Landsat 7 data with EO-1 ALI and Terra ASTER data filling in any ...

  radiance landsat usgs gls l5 etm

• Landsat Global Land Survey 2005, Landsat 7 scenes

  The GLS2005 data set is a collection of 9500 orthorectified leaf-on medium-resolution satellite images collected between 2004 and 2007 and covering the Earth's land masses. GLS2005 uses mainly Landsat 5 and gap-filled Landsat 7 data with EO-1 ALI and Terra ASTER data filling in any ...

  radiance landsat usgs gls l7 etm

• USGS Landsat 8 Collection 1 Tier 1 Raw Scenes

  Landsat 8 Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have well-characterized ...

  global oli-tirs l8 lc8 c1 tier1

• USGS Landsat 8 Collection 1 Tier 1 and Real-Time data Raw Scenes

  Landsat 8 Collection 1 Tier 1 and Real-Time data DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data ...

  global oli-tirs l8 lc8 c1 tier1

• USGS Landsat 8 Collection 1 Tier 1 and Real-Time data TOA Reflectance

  Landsat 8 Collection 1 Tier 1 and Real-Time data calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 8 Surface Reflectance Tier 1

  This dataset is the atmospherically corrected surface reflectance from the Landsat 8 OLI/TIRS sensors. These images contain 5 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and two thermal infrared (TIR) bands processed to orthorectified brightness temperature ...

  global sr reflectance l8sr cloud fmask

• USGS Landsat 8 Collection 1 Tier 1 TOA Reflectance

  Landsat 8 Collection 1 Tier 1 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 8 Collection 1 Tier 2 Raw Scenes

  Landsat 8 Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not meet ...

  global oli-tirs l8 lc8 c1 tier2

• USGS Landsat 8 Surface Reflectance Tier 2

  This dataset is the atmospherically corrected surface reflectance from the Landsat 8 OLI/TIRS sensors. These images contain 5 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and two thermal infrared (TIR) bands processed to orthorectified brightness temperature ...

  global sr reflectance l8sr cloud fmask

• USGS Landsat 8 Collection 1 Tier 2 TOA Reflectance

  Landsat 8 Collection 1 Tier 2 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 7 Collection 1 Tier 1 Raw Scenes

  Landsat 7 Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have well-characterized ...

  global etm l7 le7 c1 tier1

• USGS Landsat 7 Collection 1 Tier 1 and Real-Time data Raw Scenes

  Landsat 7 Collection 1 Tier 1 and Real-Time data DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data ...

  global etm l7 le7 c1 tier1

• USGS Landsat 7 Collection 1 Tier 1 and Real-Time data TOA Reflectance

  Landsat 7 Collection 1 Tier 1 and Real-Time data calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 7 Surface Reflectance Tier 1

  This dataset is the atmospherically corrected surface reflectance from the Landsat 7 ETM+ sensor. These images contain 4 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and one thermal infrared (TIR) band processed to orthorectified brightness temperature. ...

  global sr reflectance ledaps cloud fmask

• USGS Landsat 7 Collection 1 Tier 1 TOA Reflectance

  Landsat 7 Collection 1 Tier 1 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 7 Collection 1 Tier 2 Raw Scenes

  Landsat 7 Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not meet ...

  global etm l7 le7 c1 tier2

• USGS Landsat 7 Surface Reflectance Tier 2

  This dataset is the atmospherically corrected surface reflectance from the Landsat 7 ETM+ sensor. These images contain 4 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and one thermal infrared (TIR) band processed to orthorectified brightness temperature. ...

  global sr reflectance ledaps cloud fmask

• USGS Landsat 7 Collection 1 Tier 2 TOA Reflectance

  Landsat 7 Collection 1 Tier 2 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 1 MSS Collection 1 Tier 1 Raw Scenes

  Landsat 1 MSS Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global mss l1 lm1 c1 tier1

• USGS Landsat 1 MSS Collection 1 Tier 2 Raw Scenes

  Landsat 1 MSS Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global mss l1 lm1 c1 tier2

• USGS Landsat 2 MSS Collection 1 Tier 1 Raw Scenes

  Landsat 2 MSS Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global mss l2 lm2 c1 tier1

• USGS Landsat 2 MSS Collection 1 Tier 2 Raw Scenes

  Landsat 2 MSS Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global mss l2 lm2 c1 tier2

• USGS Landsat 3 MSS Collection 1 Tier 1 Raw Scenes

  Landsat 3 MSS Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global mss l3 lm3 c1 tier1

• USGS Landsat 3 MSS Collection 1 Tier 2 Raw Scenes

  Landsat 3 MSS Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global mss l3 lm3 c1 tier2

• USGS Landsat 4 MSS Collection 1 Tier 1 Raw Scenes

  Landsat 4 MSS Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global mss l4 lm4 c1 tier1

• USGS Landsat 4 MSS Collection 1 Tier 2 Raw Scenes

  Landsat 4 MSS Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global mss l4 lm4 c1 tier2

• USGS Landsat 5 MSS Collection 1 Tier 1 Raw Scenes

  Landsat 5 MSS Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global mss l5 lm5 c1 tier1

• USGS Landsat 5 MSS Collection 1 Tier 2 Raw Scenes

  Landsat 5 MSS Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global mss l5 lm5 c1 tier2

• USGS Landsat 8 Collection 1 Tier 1 OLI Raw Scenes

  Landsat 8 Collection 1 Tier 1 OLI DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global oli l8 lo8 c1 tier1

• USGS Landsat 8 Collection 1 Tier 1 and Real-Time data OLI Raw Scenes

  Landsat 8 Collection 1 Tier 1 and Real-Time data OLI DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed ...

  global oli l8 lo8 c1 tier1

• USGS Landsat 8 Collection 1 Tier 2 OLI Raw Scenes

  Landsat 8 Collection 1 Tier 2 OLI DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global oli l8 lo8 c1 tier2

• USGS Landsat 4 TM Collection 1 Tier 1 Raw Scenes

  Landsat 4 TM Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global tm l4 lt4 c1 tier1

• USGS Landsat 4 Surface Reflectance Tier 1

  This dataset is the atmospherically corrected surface reflectance from the Landsat 4 ETM sensor. These images contain 4 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and one thermal infrared (TIR) band processed to orthorectified brightness temperature. ...

  global sr reflectance ledaps cloud fmask

• USGS Landsat 4 TM Collection 1 Tier 1 TOA Reflectance

  Landsat 4 TM Collection 1 Tier 1 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 4 TM Collection 1 Tier 2 Raw Scenes

  Landsat 4 TM Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global tm l4 lt4 c1 tier2

• USGS Landsat 4 Surface Reflectance Tier 2

  This dataset is the atmospherically corrected surface reflectance from the Landsat 4 ETM sensor. These images contain 4 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and one thermal infrared (TIR) band processed to orthorectified brightness temperature. ...

  global sr reflectance ledaps cloud fmask

• USGS Landsat 4 TM Collection 1 Tier 2 TOA Reflectance

  Landsat 4 TM Collection 1 Tier 2 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 5 TM Collection 1 Tier 1 Raw Scenes

  Landsat 5 TM Collection 1 Tier 1 DN values, representing scaled, calibrated at-sensor radiance.Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series processing analysis. Tier 1 includes Level-1 Precision Terrain (L1TP) processed data that have ...

  global tm l5 lt5 c1 tier1

• USGS Landsat 5 Surface Reflectance Tier 1

  This dataset is the atmospherically corrected surface reflectance from the Landsat 5 ETM sensor. These images contain 4 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and one thermal infrared (TIR) band processed to orthorectified brightness temperature. ...

  global sr reflectance ledaps cloud fmask

• USGS Landsat 5 TM Collection 1 Tier 1 TOA Reflectance

  Landsat 5 TM Collection 1 Tier 1 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 5 TM Collection 1 Tier 2 Raw Scenes

  Landsat 5 TM Collection 1 Tier 2 DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global tm l5 lt5 c1 tier2

• USGS Landsat 5 Surface Reflectance Tier 2

  This dataset is the atmospherically corrected surface reflectance from the Landsat 5 ETM sensor. These images contain 4 visible and near-infrared (VNIR) bands and 2 short-wave infrared (SWIR) bands processed to orthorectified surface reflectance, and one thermal infrared (TIR) band processed to orthorectified brightness temperature. ...

  global sr reflectance ledaps cloud fmask

• USGS Landsat 5 TM Collection 1 Tier 2 TOA Reflectance

  Landsat 5 TM Collection 1 Tier 2 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

  global toa landsat usgs

• USGS Landsat 8 Collection 1 Tier 2 TIRS Raw Scenes

  Landsat 8 Collection 1 Tier 2 TIRS DN values, representing scaled, calibrated at-sensor radiance.Scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. This includes Systematic terrain (L1GT) and Systematic (L1GS) processed scenes, as well as any L1TP scenes that do not ...

  global tirs l8 lt8 c1 tier2

• Global Mangrove Forests Distribution, v1 (2000)

  The database was prepared using Landsat satellite data from the year 2000. More than 1,000 Landsat scenes obtained from the USGS Earth Resources Observation and Science Center (EROS) were classified using hybrid supervised and unsupervised digital image classification techniques. This database is the first, most ...

  annual global mangrove landsat-derived usgs ciesin

• MCD12Q1.006 MODIS Land Cover Type Yearly Global 500m

  The MCD12Q1 V6 product provides global land cover types at yearly intervals (2001-2016) derived from six different classification schemes. It is derived using supervised classifications of MODIS Terra and Aqua reflectance data. The supervised classifications then undergo additional post-processing that incorporate prior knowledge and ancillary ...

  landcover modis mcd12q1 yearly usgs nasa

• MCD12Q2.006 Land Cover Dynamics Yearly Global 500m

  The MCD12Q2 V6 Land Cover Dynamics product (informally called the MODIS Global Vegetation Phenology product) provides estimates of the timing of vegetation phenology at global scales. Additionally, it provides information related to the range and summation of the enhanced vegetation index (EVI) computed from MODIS ...

  evi onset-greenness phenology modis mcd12q2 yearly

• MCD15A3H.006 MODIS Leaf Area Index/FPAR 4-Day Global 500m

  The MCD15A3H V6 level 4, Combined Fraction of Photosynthetically Active Radiation (FPAR), and Leaf Area Index (LAI) product is a 4-day composite data set with 500 meter pixel size. The algorithm chooses the "best" pixel available from all the acquisitions of both MODIS sensors located ...

  fpar lai vegetation modis mcd115a3h 4-day

• MCD19A2.006: Terra & Aqua MAIAC Land Aerosol Optical Depth Daily 1km

  The MCD19A2 V6 data product is a MODIS Terra and Aqua combined Multi-angle Implementation of Atmospheric Correction (MAIAC) Land Aerosol Optical Depth (AOD) gridded Level 2 product produced daily at 1 km resolution. For more information see the MAIAC user guide.

  aod aerosol maiac modis mcd19a2 daily

• MCD43A1.006 MODIS BRDF-Albedo Model Parameters Daily 500m

  The MCD43A1 V6 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Model Parameters dataset is a 500 meter daily 16-day product. The Julian date represents the 9th day of the 16-day retrieval period, and consequently the observations are weighted to estimate the BRDF/Albedo for that day. ...

  albedo brdf reflectance modis mcd43a1 daily

• MCD43A2.006 MODIS BRDF-Albedo Quality Daily 500m

  The MCD43A2 V6 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Quality dataset is a 500 meter daily 16-day product. It contains all the quality information for the corresponding 16-day MCD43A3 Albedo and the MCD43A4 Nadir-BRDF (NBAR) products. The MCD43A2 contains individual band quality and observation ...

  albedo quality brdf reflectance modis mcd43a2

• MCD43A3.006 MODIS Albedo Daily 500m

  The MCD43A3 V6 Albedo Model dataset is a daily 16-day product. It provides both directional hemispherical reflectance (black sky albedo) and bihemispherical reflectance (white sky albedo) for each of the MODIS surface reflectance bands (band 1 through band 7) as well as 3 broad spectrum ...

  albedo white-sky black-sky modis mcd43a3 daily

• MCD43A4.006 MODIS Nadir BRDF-Adjusted Reflectance Daily 500m

  The MCD43A4 V6 Nadir Bidirectional Reflectance Distribution Function Adjusted Reflectance (NBAR) product provides 500 meter reflectance data of the MODIS "land" bands 1-7. These are adjusted using a bidirectional reflectance distribution function to model the values as if they were collected from a nadir view. ...

  albedo brdf reflectance modis mcd43a4 daily

• MCD43C3.00C BRDF/Albedo Daily L3 0.05 Deg CMG

  The MCD43C3 Version 6 Bidirectional Reflectance Distribution Function and Albedo (BRDF/Albedo) Albedo dataset is produced daily using 16 days of Terra and Aqua MODIS data in a 0.05 degree (5,600 meters at the equator) Climate Modeling Grid (CMG). Data are temporally weighted to the ninth ...

  albedo white-sky black-sky brdf modis mcd43c3

• MCD64A1.006 MODIS Burned Area Monthly Global 500m

  The Terra and Aqua combined MCD64A1 Version 6 Burned Area data product is a monthly, global gridded 500m product containing per-pixel burned-area and quality information. The MCD64A1 burned-area mapping approach employs 500m MODIS Surface Reflectance imagery coupled with 1km MODIS active fire observations. The algorithm ...

  burn fire geophysical modis mcd64a1 monthly

• MOD09A1.006 Terra Surface Reflectance 8-Day Global 500m

  The MOD09A1 V6 product provides an estimate of the surface spectral reflectance of Terra MODIS bands 1-7 at 500m resolution and corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the seven reflectance bands is a quality layer and four observation ...

  surface-reflectance sr modis mod09a1 8-day global

• MOD09GA.006 Terra Surface Reflectance Daily Global 1km and 500m

  The MODIS Surface Reflectance products provide an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols. MOD09GA version 6 provides bands 1-7 in ...

  surface-reflectance sr modis mod09ga daily global

• MOD09GQ.006 Terra Surface Reflectance Daily Global 250m

  The MODIS Surface Reflectance products provide an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols. MOD09GQ version 6 provides bands 1 and ...

  surface-reflectance sr modis mod09gq daily global

• MOD09Q1.006 Terra Surface Reflectance 8-Day Global 250m

  The MOD09Q1 product provides an estimate of the surface spectral reflectance of bands 1 and 2 at 250m resolution and corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the two reflectance bands, a quality layer is also included. For each ...

  surface-reflectance sr modis mod09q1 8-day global

• MOD11A1.006 Terra Land Surface Temperature and Emissivity Daily Global 1km

  The MOD11A1 V6 product provides daily land surface temperature (LST) and emissivity values in a 1200 x 1200 kilometer grid. The temperature value is derived from the MOD11_L2 swath product. Above 30 degrees latitude, some pixels may have multiple observations where the criteria for clear-sky ...

  surface-temperature emissivity lst modis mod11a1 daily

• MOD11A2.006 Terra Land Surface Temperature and Emissivity 8-Day Global 1km

  The MOD11A2 V6 product provides an average 8-day land surface temperature (LST) in a 1200 x 1200 kilometer grid. Each pixel value in MOD11A2 is a simple average of all the corresponding MOD11A1 LST pixels collected within that 8 day period. The 8 day compositing ...

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• MOD13A1.006 Terra Vegetation Indices 16-Day Global 500m

  The MOD13A1 V6 product provides a Vegetation Index (VI) value at a per pixel basis. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI) which is referred to as the continuity index to the existing National Oceanic and Atmospheric ...

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• MOD13A2.006 Terra Vegetation Indices 16-Day Global 1km

  The MOD13A2 V6 product provides two Vegetation Indices (VI): the Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI). The NDVI is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. ...

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• MOD13Q1.006 Terra Vegetation Indices 16-Day Global 250m

  The MOD13Q1 V6 product provides a Vegetation Index (VI) value at a per pixel basis. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI) which is referred to as the continuity index to the existing National Oceanic and Atmospheric ...

  vegetation ndvi evi modis mod13q1 16-day

• MOD14A1.006: Terra Thermal Anomalies & Fire Daily Global 1km

  The MOD14A1 V6 dataset provides daily fire mask composites at 1km resolution derived from the MODIS 4- and 11-micrometer radiances. The fire detection strategy is based on absolute detection of a fire (when the fire strength is sufficient to detect), and on detection relative to ...

  fire modis mod14a1 daily global terra

• MOD14A2.006: Terra Thermal Anomalies & Fire 8-Day Global 1km

  The MOD14A2 V6 dataset provides 8-day fire mask composites at 1km resolution. It contains the maximum value of the individual pixel classes over the compositing period. Along with the fire mask, an associated quality information layer is also provided.

  fire modis mod14a2 8-day global terra

• MOD15A2H.006: Terra Leaf Area Index/FPAR 8-Day Global 500m

  The MOD15A2H V6 MODIS combined Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) product is an 8-day composite dataset at 500m resolution. The algorithm chooses the "best" pixel available from all the acquisitions of the Terra sensor from within the 8-day period.

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• MOD17A2H.006: Terra Gross Primary Productivity 8-Day Global 500m

  The MOD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and ...

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• MOD17A3HGF.006: Terra Net Primary Production Gap-Filled Yearly Global 500m

  The MOD17A3HGF V6 product provides information about annual Net Primary Productivity (NPP) at 500m pixel resolution. Annual NPP is derived from the sum of all 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the Gross Primary ...

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• MOD44W.006 Terra Land Water Mask Derived from MODIS and SRTM Yearly Global 250m

  The MOD44W V6 land/water mask 250m product is derived using a decision tree classifier trained with MODIS data and validated with the MOD44W V5 product. A series of masks are applied to address known issues caused by terrain shadow, burn scars, cloudiness, or ice cover ...

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• MODOCGA.006 Terra Ocean Reflectance Daily Global 1km

  The MODOCGA V6 ocean reflectance product consists of 1 kilometer reflectance data from Terra MODIS bands 8-16. The product is referred to as ocean reflectance, because bands 8-16 are used primarily to produce ocean products, but this is not an ocean product as the tiles ...

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• MYD09A1.006 Aqua Surface Reflectance 8-Day Global 500m

  The MYD09A1 V6 product provides an estimate of the surface spectral reflectance of Aqua MODIS bands 1-7 at 500m resolution and corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the seven reflectance bands is a quality layer and four observation ...

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• MYD09GA.006 Aqua Surface Reflectance Daily Global 1km and 500m

  The MODIS Surface Reflectance products provide an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols. MYD09GA version 6 provides bands 1-7 in ...

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• MYD09GQ.006 Aqua Surface Reflectance Daily Global 250m

  The MODIS Surface Reflectance products provide an estimate of the surface spectral reflectance as it would be measured at ground level in the absence of atmospheric scattering or absorption. Low-level data are corrected for atmospheric gases and aerosols. MYD09GQ version 6 provides bands 1 and ...

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• MYD09Q1.006 Aqua Surface Reflectance 8-Day Global 250m

  The MYD09Q1 product provides an estimate of the surface spectral reflectance of bands 1 and 2 at 250m resolution and corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the two reflectance bands, a quality layer is also included. For each ...

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• MYD11A1.006 Aqua Land Surface Temperature and Emissivity Daily Global 1km

  The MYD11A1 V6 product provides daily land surface temperature (LST) and emissivity values in a 1200 x 1200 kilometer grid. The temperature value is derived from the MOD11_L2 swath product. Above 30 degrees latitude, some pixels may have multiple observations where the criteria for clear-sky ...

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• MYD11A2.006 Aqua Land Surface Temperature and Emissivity 8-Day Global 1km

  The MYD11A2 V6 product provides an average 8-day land surface temperature (LST) in a 1200 x 1200 kilometer grid. Each pixel value in MYD11A2 is a simple average of all the corresponding MOD11A1 LST pixels collected within that 8 day period. The 8 day compositing ...

  surface-temperature emissivity lst modis myd11a2 8-day

• MYD13A1.006 Aqua Vegetation Indices 16-Day Global 500m

  The MYD13A1 V6 product provides a Vegetation Index (VI) value at a per pixel basis. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI) which is referred to as the continuity index to the existing National Oceanic and Atmospheric ...

  vegetation ndvi evi modis myd13a1 16-day

• MYD13A2.006 Aqua Vegetation Indices 16-Day Global 1km

  The MYD13A2 V6 product provides two Vegetation Indices (VI): the Normalized Difference Vegetation Index (NDVI) and the Enhanced Vegetation Index (EVI). The NDVI is referred to as the continuity index to the existing National Oceanic and Atmospheric Administration-Advanced Very High Resolution Radiometer (NOAA-AVHRR) derived NDVI. ...

  vegetation ndvi evi modis myd13a2 16-day

• MYD13Q1.006 Aqua Vegetation Indices 16-Day Global 250m

  The MYD13Q1 V6 product provides a Vegetation Index (VI) value at a per pixel basis. There are two primary vegetation layers. The first is the Normalized Difference Vegetation Index (NDVI) which is referred to as the continuity index to the existing National Oceanic and Atmospheric ...

  vegetation ndvi evi modis myd13q1 16-day

• MYD14A1.006: Aqua Thermal Anomalies & Fire Daily Global 1km

  The MYD14A1 V6 dataset provides daily fire mask composites at 1km resolution derived from the MODIS 4- and 11-micrometer radiances. The fire detection strategy is based on absolute detection of a fire (when the fire strength is sufficient to detect), and on detection relative to ...

  fire modis myd14a1 daily global aqua

• MYD14A2.006: Aqua Thermal Anomalies & Fire 8-Day Global 1km

  The MYD14A2 V6 dataset provides 8-day fire mask composites at 1km resolution. It contains the maximum value of the individual pixel classes over the compositing period. Along with the fire mask, an associated quality information layer is also provided.

  fire modis myd14a2 8-day global aqua

• MYD15A2H.006: Aqua Leaf Area Index/FPAR 8-Day Global 500m

  The MYD15A2H V6 MODIS combined Leaf Area Index (LAI) and Fraction of Photosynthetically Active Radiation (FPAR) product is an 8-day composite dataset at 500m resolution. The algorithm chooses the "best" pixel available from all the acquisitions of the Aqua sensor from within the 8-day period.

  lai fpar modis myd15a2h 8-day global

• MYD17A2H.006: Aqua Gross Primary Productivity 8-Day Global 500m

  The MYD17A2H V6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite with a 500m resolution. The product is based on the radiation-use efficiency concept and can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and ...

  gpp psn productivity photosynthesis modis mod17a2

• MYD17A3HGF.006: Aqua Net Primary Production Gap-Filled Yearly Global 500m

  The MYD17A3HGF V6 product provides information about annual Net Primary Productivity (NPP) at 500m pixel resolution. Annual NPP is derived from the sum of all 8-day Net Photosynthesis (PSN) products (MOD17A2H) from the given year. The PSN value is the difference of the Gross Primary ...

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• MYDOCGA.006 Aqua Ocean Reflectance Daily Global 1km

  The MYDOCGA V6 ocean reflectance product consists of 1 kilometer reflectance data from Aqua MODIS bands 8-16. The product is referred to as ocean reflectance, because bands 8-16 are used primarily to produce ocean products, but this is not an ocean product as the tiles ...

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• MOD08_M3.061 Terra Atmosphere Monthly Global Product

  MOD08_M3 V6.1 is an atmosphere global product that contains monthly 1 x 1 degree grid average values of atmospheric parameters. These parameters are related to atmospheric aerosol particle properties, total ozone burden, atmospheric water vapor, cloud optical and physical properties, and atmospheric stability indices. The ...

  atmosphere temperature geophysical modis mod08 mod08-m3

• MYD08_M3.061 Aqua Atmosphere Monthly Global Product

  MYD08_M3 V6.1 is an atmosphere global product that contains monthly 1 x 1 degree grid average values of atmospheric parameters. These parameters are related to atmospheric aerosol particle properties, total ozone burden, atmospheric water vapor, cloud optical and physical properties, and atmospheric stability indices. The ...

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• USGS GAP Alaska 2001

  The GAP/LANDFIRE National Terrestrial Ecosystems data represents a detailed vegetation and land cover classification for the Conterminous U.S., Alaska, Hawaii, and Puerto Rico.GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. Alaska ...

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• USGS GAP CONUS 2011

  The GAP/LANDFIRE National Terrestrial Ecosystems data represents a detailed vegetation and land cover classification for the Conterminous U.S., Alaska, Hawaii, and Puerto Rico.GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. Alaska ...

  landcover vegetation gap usgs landfire

• USGS GAP Hawaii 2001

  The GAP/LANDFIRE National Terrestrial Ecosystems data represents a detailed vegetation and land cover classification for the Conterminous U.S., Alaska, Hawaii, and Puerto Rico.GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. Alaska ...

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• Designation: USGS GAP PAD-US v2.0

  PAD-US is America's official national inventory of U.S. terrestrial and marine protected areas that are dedicated to the preservation of biological diversity and to other natural, recreation and cultural uses, managed for these purposes through legal or other effective means. This database is separated into ...

  protected-areas ownership management designation public-lands conservation-easements

• Easement: USGS GAP PAD-US v2.0

  PAD-US is America's official national inventory of U.S. terrestrial and marine protected areas that are dedicated to the preservation of biological diversity and to other natural, recreation and cultural uses, managed for these purposes through legal or other effective means. This database is separated into ...

  protected-areas ownership management designation public-lands conservation-easements

• Fee: USGS GAP PAD-US v2.0

  PAD-US is America's official national inventory of U.S. terrestrial and marine protected areas that are dedicated to the preservation of biological diversity and to other natural, recreation and cultural uses, managed for these purposes through legal or other effective means. This database is separated into ...

  protected-areas ownership management designation public-lands conservation-easements

• Proclamation: USGS GAP PAD-US v2.0

  PAD-US is America's official national inventory of U.S. terrestrial and marine protected areas that are dedicated to the preservation of biological diversity and to other natural, recreation and cultural uses, managed for these purposes through legal or other effective means. This database is separated into ...

  protected-areas ownership management designation public-lands conservation-easements

• USGS GAP Puerto Rico 2001

  The GAP/LANDFIRE National Terrestrial Ecosystems data represents a detailed vegetation and land cover classification for the Conterminous U.S., Alaska, Hawaii, and Puerto Rico.GAP/LF 2011 Ecosystems for the Conterminous U.S. is an update of the National Gap Analysis Program Land Cover Data - Version 2.2. Alaska ...

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• GFSAD1000: Cropland Extent 1km Multi-Study Crop Mask, Global Food-Support Analysis Data

  The GFSAD is a NASA-funded project to provide high-resolution global cropland data and their water use that contributes towards global food security in the twenty-first century. The GFSAD products are derived through multi-sensor remote sensing data (e.g., Landsat, MODIS, AVHRR), secondary data, and field-plot data ...

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• GMTED2010: Global Multi-resolution Terrain Elevation Data 2010

  The Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) dataset contains elevation data for the globe collected from various sources. The version of the dataset available here is Breakline Emphasis, 7.5 arc-seconds resolution. Breakline emphasis maintains the critical topographic features (streams or ridges) within the landscape ...

  srtm elevation dem topography geophysical usgs

• GTOPO30: Global 30 Arc-Second Elevation

  GTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). The DEM was derived from several raster and vector sources of topographic information. Completed in late 1996, GTOPO30 was developed over a three-year period through ...

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• Landsat Image Mosaic of Antarctica (LIMA) 16-Bit Pan-sharpened Mosaic

  The Landsat Image Mosaic of Antarctica (LIMA) is a seamless and virtually cloudless mosaic created from processed Landsat 7 ETM+ scenes. This LIMA dataset is the 16-bit Intermediate LIMA. The mosaic consists of pan-sharpened normalized surface reflectance scenes (Landsat ETM+ bands 1, 2, 3, and ...

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• Landsat Image Mosaic of Antarctica (LIMA) - Processed Landsat Scenes (16 bit)

  The Landsat Image Mosaic of Antarctica (LIMA) is a seamless and virtually cloudless mosaic created from processed Landsat 7 ETM+ scenes. Processed Landsat Scenes (16 bit) are Level 1Gt NLAPS scenes converted to 16 bit, processed with sun-angle correction, and converted to reflectance values (Bindschadler ...

  antarctica sr mosaic ice usgs lima

• USGS National Elevation Dataset 1/3 arc-second

  The National Elevation Dataset (NED) used to be* the primary elevation data product of the USGS. The NED is a seamless dataset with the best available raster elevation data of the conterminous United States, parts of Alaska, Hawaii, and some territorial islands. The NED is ...

  ned elevation topography dem geophysical usgs

• NLCD: USGS National Land Cover Database

  NLCD (the National Land Cover Database) is a 30-m Landsat-based land cover database spanning 8 epochs (1992, 2001, 2004, 2006, 2008, 2011, 2013 and 2016). 1992 data are primarily based on unsupervised classification of Landsat data, while the rest of the images rely on the ...

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• SRTM Digital Elevation Data 30m

  The Shuttle Radar Topography Mission (SRTM, see Farr et al. 2007) digital elevation data is an international research effort that obtained digital elevation models on a near-global scale. This SRTM V3 product (SRTM Plus) is provided by NASA JPL at a resolution of 1 arc-second ...

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• HUC02: USGS Watershed Boundary Dataset of Regions

  The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit (HU) data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there ...

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• HUC04: USGS Watershed Boundary Dataset of Subregions

  The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit (HU) data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there ...

  water watershed wbd hydrology usgs

• HUC06: USGS Watershed Boundary Dataset of Basins

  The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit (HU) data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there ...

  water watershed wbd hydrology usgs

• HUC08: USGS Watershed Boundary Dataset of Subbasins

  The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit (HU) data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there ...

  water watershed wbd hydrology usgs

• HUC10: USGS Watershed Boundary Dataset of Watersheds

  The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit (HU) data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there ...

  water watershed wbd hydrology usgs

• HUC12: USGS Watershed Boundary Dataset of Subwatersheds

  The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit (HU) data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there ...

  water watershed wbd hydrology usgs