USGS Landsat 8 Collection 1 Tier 2 TIRS Raw Scenes

LANDSAT/LT08/C01/T2
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("LANDSAT/LT08/C01/T2")
Tags
global tirs l8 lt8 c1 tier2 t2 radiance landsat usgs

Description

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 meet the Tier 1 specifications due to significant cloud cover, insufficient ground control, and other factors. Users interested in Tier 2 scenes can analyze the RMSE and other properties to determine the suitability for use in individual applications and studies. See more information in the USGS docs.

For more information, see Landsat 8 Handbook

Bands

Bands

Name Resolution Wavelength Description
B10 30 meters 10.60 - 11.19 µm

Thermal infrared 1, resampled from 100m to 30m

B11 30 meters 11.50 - 12.51 µm

Thermal infrared 2, resampled from 100m to 30m

BQA

Landsat Collection 1 QA Bitmask (See Landsat QA page)

Image Properties

Image Properties

Name Type Description
BPF_NAME_TIRS STRING

The file name for the Bias Parameter File (BPF) used to generate the product, if applicable. This only applies to products that contain TIRS bands.

CLOUD_COVER DOUBLE

Percentage cloud cover, -1 = not calculated.

CLOUD_COVER_LAND DOUBLE

Percentage cloud cover over land, -1 = not calculated.

COLLECTION_CATEGORY STRING

Tier of scene. (T1 or T2)

COLLECTION_NUMBER DOUBLE

Number of collection.

CPF_NAME STRING

Calibration parameter file name.

DATA_TYPE STRING

Data type identifier. (L1T or L1G)

DATE_ACQUIRED STRING

Image acquisition date. "YYYY-MM-DD"

DATUM STRING

Datum used in image creation.

EARTH_SUN_DISTANCE DOUBLE

Earth sun distance in astronomical units (AU).

ELEVATION_SOURCE STRING

Elevation model source used for standard terrain corrected (L1T) products.

ELLIPSOID STRING

Ellipsoid used in image creation.

EPHEMERIS_TYPE STRING

Ephemeris data type used to perform geometric correction. (Definitive or Predictive)

FILE_DATE DOUBLE

File date in milliseconds since epoch.

GEOMETRIC_RMSE_MODEL DOUBLE

Combined Root Mean Square Error (RMSE) of the geometric residuals (metres) in both across-track and along-track directions measured on the GCPs used in geometric precision correction. Not present in L1G products.

GEOMETRIC_RMSE_MODEL_X DOUBLE

RMSE of the X direction geometric residuals (in metres) measured on the GCPs used in geometric precision correction. Not present in L1G products.

GEOMETRIC_RMSE_MODEL_Y DOUBLE

RMSE of the Y direction geometric residuals (in metres) measured on the GCPs used in geometric precision correction. Not present in L1G products.

GRID_CELL_SIZE_REFLECTIVE DOUBLE

Grid cell size used in creating the image for the reflective band.

GRID_CELL_SIZE_THERMAL DOUBLE

Grid cell size used in creating the image for the thermal band.

GROUND_CONTROL_POINTS_MODEL DOUBLE

The number of ground control points used. Not used in L1GT products. Values: 0 - 999 (0 is used for L1T products that have used Multi-scene refinement).

GROUND_CONTROL_POINTS_VERSION DOUBLE

The number of ground control points used in the verification of the terrain corrected product. Values: -1 to 1615 (-1 = not available)

IMAGE_QUALITY DOUBLE

Image quality, 0 = worst, 9 = best, -1 = quality not calculated

IMAGE_QUALITY_TIRS DOUBLE

The composite image quality for the TIRS bands. Values: 9 = Best. 1 = Worst. 0 = Image quality not calculated. This parameter is only present if OLI bands are present in the product.

K1_CONSTANT_BAND_10 DOUBLE

Calibration K1 constant for Band 10 radiance to temperature conversion.

K1_CONSTANT_BAND_11 DOUBLE

Calibration K1 constant for Band 11 radiance to temperature conversion.

K2_CONSTANT_BAND_10 DOUBLE

Calibration K2 constant for Band 10 radiance to temperature conversion.

K2_CONSTANT_BAND_11 DOUBLE

Calibration K2 constant for Band 11 radiance to temperature conversion.

LANDSAT_PRODUCT_ID STRING

The naming convention of each Landsat Collection 1 Level-1 image based on acquisition parameters and processing parameters.

Format: LXSS_LLLL_PPPRRR_YYYYMMDD_yyyymmdd_CC_TX

  • L = Landsat
  • X = Sensor (O = Operational Land Imager, T = Thermal Infrared Sensor, C = Combined OLI/TIRS)
  • SS = Satellite (08 = Landsat 8)
  • LLLL = Processing Correction Level (L1TP = precision and terrain, L1GT = systematic terrain, L1GS = systematic)
  • PPP = WRS Path
  • RRR = WRS Row
  • YYYYMMDD = Acquisition Date expressed in Year, Month, Day
  • yyyymmdd = Processing Date expressed in Year, Month, Day
  • CC = Collection Number (01)
  • TX = Collection Category (RT = Real Time, T1 = Tier 1, T2 = Tier 2)
LANDSAT_SCENE_ID STRING

The Pre-Collection naming convention of each image is based on acquisition parameters. This was the naming convention used prior to Collection 1.

Format: LXSPPPRRRYYYYDDDGSIVV

  • L = Landsat
  • X = Sensor (O = Operational Land Imager, T = Thermal Infrared Sensor, C = Combined OLI/TIRS)
  • S = Satellite (08 = Landsat 8)
  • PPP = WRS Path
  • RRR = WRS Row
  • YYYY = Year of Acquisition
  • DDD = Julian Day of Acquisition
  • GSI = Ground Station Identifier
  • VV = Version
MAP_PROJECTION STRING

Projection used to represent the 3-dimensional surface of the earth for the Level-1 product.

NADIR_OFFNADIR STRING

Nadir or Off-Nadir condition of the scene.

ORIENTATION STRING

Orientation used in creating the image. Values: NOMINAL = Nominal Path, NORTH_UP = North Up, TRUE_NORTH = True North, USER = User

PROCESSING_SOFTWARE_VERSION STRING

Name and version of the processing software used to generate the L1 product.

RADIANCE_ADD_BAND_10 DOUBLE

Additive rescaling factor used to convert calibrated DN to radiance for Band 10.

RADIANCE_ADD_BAND_11 DOUBLE

Additive rescaling factor used to convert calibrated DN to radiance for Band 11.

RADIANCE_MULT_BAND_10 DOUBLE

Multiplicative rescaling factor used to convert calibrated Band 10 DN to radiance.

RADIANCE_MULT_BAND_11 DOUBLE

Multiplicative rescaling factor used to convert calibrated Band 11 DN to radiance.

REFLECTIVE_LINES DOUBLE

Number of product lines for the reflective bands.

REFLECTIVE_SAMPLES DOUBLE

Number of product samples for the reflective bands.

REQUEST_ID STRING

Request id, nnnyymmdd0000_0000

  • nnn = node number
  • yy = year
  • mm = month
  • dd = day
RESAMPLING_OPTION STRING

Resampling option used in creating the image.

RLUT_FILE_NAME STRING

The file name for the Response Linearization Lookup Table (RLUT) used to generate the product, if applicable.

ROLL_ANGLE DOUBLE

The amount of spacecraft roll angle at the scene center.

SCENE_CENTER_TIME STRING

Scene center time of acquired image. HH:MM:SS.SSSSSSSZ

  • HH = Hour (00-23)
  • MM = Minutes
  • SS.SSSSSSS = Fractional seconds
  • Z = "Zulu" time (same as GMT)
SENSOR_ID STRING

Sensor used to capture data.

SPACECRAFT_ID STRING

Spacecraft identification.

STATION_ID STRING

Ground Station/Organisation that received the data.

SUN_AZIMUTH DOUBLE

Sun azimuth angle in degrees for the image center location at the image centre acquisition time.

SUN_ELEVATION DOUBLE

Sun elevation angle in degrees for the image center location at the image centre acquisition time.

TARGET_WRS_PATH DOUBLE

Nearest WRS-2 path to the line-of-sight scene center of the image.

TARGET_WRS_ROW DOUBLE

Nearest WRS-2 row to the line-of-sight scene center of the image. Rows 880-889 and 990-999 are reserved for the polar regions where it is undefined in the WRS-2.

THERMAL_LINES DOUBLE

Number of product lines for the thermal band.

THERMAL_SAMPLES DOUBLE

Number of product samples for the thermal band.

TIRS_SSM_MODEL STRING

Due to an anomalous condition on the Thermal Infrared Sensor (TIRS) Scene Select Mirror (SSM) encoder electronics, this field has been added to indicate which model was used to process the data. (Actual, Preliminary, Final)

TIRS_SSM_POSITION_STATUS STRING

TIRS SSM position status.

TIRS_STRAY_LIGHT_CORRECTION_SOURCE STRING

TIRS stray light correction source.

UTM_ZONE DOUBLE

UTM zone number used in product map projection.

WRS_PATH DOUBLE

The WRS orbital path number (001 - 251).

WRS_ROW DOUBLE

Landsat satellite WRS row (001-248).