![NASA/GEOS-CF/v1/rpl/tavg1hr](https://developers.google.com/earth-engine/datasets/images/NASA/NASA_GEOS-CF_v1_rpl_tavg1hr_sample.png) Dataset Availability : 2018-01-01T00:00:00Z--2026-01-02T11:00:00Z Dataset Producer : [NASA / GMAO](https://gmao.gsfc.nasa.gov/gmao-products/geos-cf/) Tags : [atmosphere](https://developers.google.com/earth-engine/datasets/tags/atmosphere) [composition](https://developers.google.com/earth-engine/datasets/tags/composition) [forecast](https://developers.google.com/earth-engine/datasets/tags/forecast) [geos](https://developers.google.com/earth-engine/datasets/tags/geos) [gmao](https://developers.google.com/earth-engine/datasets/tags/gmao) [nasa](https://developers.google.com/earth-engine/datasets/tags/nasa) #### Description This dataset contains meteorological replay (rpl) of time-average one hour data (tavg1hr). It is built by merging the original GEOS-CF collections chm_tavg_1hr_g1440x721_v1, met_tavg_1hr_g1440x721_x1, and xgc_tavg_1hr_g1440x721_x1. The Goddard Earth Observing System Composition Forecast (GEOS-CF) system is a global constituent prediction system from NASA's [Global Modeling and Assimilation Office (GMAO)](https://gmao.gsfc.nasa.gov/). GEOS-CF offers a new tool for atmospheric chemistry research, with the goal to supplement NASA's broad range of space-based and in-situ observations. GEOS-CF expands on the GEOS weather and aerosol modeling system by introducing the [GEOS-Chem](http://wiki.seas.harvard.edu/geos-chem/) chemistry module to provide hindcasts and 5-days forecasts of atmospheric constituents including ozone (O~3~), carbon monoxide (CO), nitrogen dioxide (NO~2~), sulfur dioxide (SO~2~), and fine particulate matter (PM~2.5~). The chemistry module integrated in GEOS-CF is identical to the offline GEOS-Chem model and readily benefits from the innovations provided by the GEOS-Chem community. Model outputs are provided on a 0.25° latitude-longitude grid. Please refer to the [GEOS-CF Product Page](https://gmao.gsfc.nasa.gov/gmao-products/geos-cf/) for more details. [Evaluation of GEOS-CF](https://doi.org/10.1029/2020MS002413) against satellite, ozonesonde, and surface observations for years 2018--2019 shows realistic simulated concentrations of O~3~, NO~2~, and CO, with normalized mean biases of −0.1 to 0.3, normalized root mean square errors between 0.1--0.4, and correlations between 0.3--0.8. Comparisons against surface observations highlight the successful representation of air pollutants in many regions of the world and during all seasons, yet also highlight current limitations, such as a global high bias in SO~2~ and an overprediction of summertime O~3~ over the Southeast United States. GEOS-CF v1 generally overestimates aerosols by 20%--50% due to known issues in GEOS-Chem v12.0.1 that have been addressed in later versions. The 5-days forecasts have skill scores comparable to the 1-day hindcast. Model skills can be improved significantly by applying a bias-correction to the surface model output using a machine-learning approach. **Please Note:** A new version of GEOS-CF, v2, was released in January 2026. The updates to the GEOS-CF system include updates to the GEOS atmospheric general circulation model and the GEOS-Chem chemical model, replaying meteorology to [GEOS IT](https://gmao.gsfc.nasa.gov/gmao-products/geos-it/), direct assimilation of stratospheric profiles and column ozone, and updates to the anthropogenic emission source. Many of the same products are available, and some new products have been added, but other products have been discontinued. Furthermore, GEOS-CF v2 data will not be back-processed to cover the same period as GEOS-CF v1. For this reason, we consider GEOS-CF v2 to be a continuation and supplement to the GEOS-CF v data record, but not a replacement for GEOS-CF v1 data. Please see the [GEOS-CF system description](https://gmao.gsfc.nasa.gov/gmao-products/geos-cf/system-description_geos-cf/) for a summary of the updates, and consider the [preliminary GEOS-CF v2 evaluation results](https://gmao.gsfc.nasa.gov/science-snapshots/improved-atmospheric-composition-forecasting-in-geos-cf-version-2/) when deciding which version to use in your analysis. ### Bands **Bands** Pixel size: 27750 meters (all bands) | Name | Units | Pixel Size | Description | |---|---|---|---| | `ACET` | Mol fraction | 27750 meters | Acetone (CH3C(O)CH3, MW = 58.08 g mol-1) volume mixing ratio dry air | | `ALD2` | Mol fraction | 27750 meters | Acetaldehyde (CH3CHO, MW = 44.05 g mol-1) volume mixing ratio dry air | | `ALK4` | Mol fraction | 27750 meters | Lumped \>= C4 Alkanes (MW = 58.12 g mol-1) volume mixing ratio dry air | | `AOD550_BC` | | 27750 meters | Black carbon optical depth at 550nm | | `AOD550_CLOUD` | | 27750 meters | Cloud optical depth | | `AOD550_DST1` | | 27750 meters | Dust bin1 optical depth at 550nm | | `AOD550_DST2` | | 27750 meters | Dust bin2 optical depth at 550nm | | `AOD550_DST3` | | 27750 meters | Dust bin3 optical depth at 550nm | | `AOD550_DST4` | | 27750 meters | Dust bin4 optical depth at 550nm | | `AOD550_DST5` | | 27750 meters | Dust bin5 optical depth at 550nm | | `AOD550_DST6` | | 27750 meters | Dust bin6 optical depth at 550nm | | `AOD550_DST7` | | 27750 meters | Dust bin7 optical depth at 550nm | | `AOD550_DUST` | | 27750 meters | Dust optical depth at 550nm | | `AOD550_OC` | | 27750 meters | Organic carbon optical depth at 550nm | | `AOD550_SALA` | | 27750 meters | Accumulation mode sea salt optical depth at 550nm | | `AOD550_SALC` | | 27750 meters | Coarse mode sea salt optical depth at 550nm | | `AOD550_SULFATE` | | 27750 meters | Sulfate optical depth at 550nm | | `BCPI` | Mol fraction | 27750 meters | Hydrophilic black carbon aerosol (MW = 12.01 g mol-1) volume mixing ratio dry air | | `BCPO` | Mol fraction | 27750 meters | Hydrophobic black carbon aerosol (MW = 12.01 g mol-1) volume mixing ratio dry air | | `BENZ` | Mol fraction | 27750 meters | Benzene (C6H6, MW = 78.11 g mol-1) volume mixing ratio dry air | | `C2H6` | Mol fraction | 27750 meters | Ethane (C2H6, MW = 30.07 g mol-1) volume mixing ratio dry air | | `C3H8` | Mol fraction | 27750 meters | Propane (C3H8, MW = 44.10 g mol-1) volume mixing ratio dry air | | `CH4` | Mol fraction | 27750 meters | Methane (CH4, MW = 16.00 g mol-1) volume mixing ratio dry air | | `CLDTT` | | 27750 meters | Total cloud area fraction | | `CO` | Mol fraction | 27750 meters | Carbon monoxide (CO, MW = 28.00 g mol-1) volume mixing ratio dry air | | `DRYDEPFLX_BCPI` | molec cm-2 s-1 | 27750 meters | Hydrophilic black carbon aerosol (MW = 12.01 g mol-1) dry deposition flux | | `DRYDEPFLX_BCPO` | molec cm-2 s-1 | 27750 meters | Hydrophobic black carbon aerosol (MW = 12.01 g mol-1) dry deposition flux | | `DRYDEPFLX_DST1` | molec cm-2 s-1 | 27750 meters | Dust aerosol, Reff = 0.7 microns (MW = 29.00 g mol-1) dry deposition flux | | `DRYDEPFLX_DST2` | molec cm-2 s-1 | 27750 meters | Dust aerosol, Reff = 1.4 microns (MW = 29.00 g mol-1) dry deposition flux | | `DRYDEPFLX_DST3` | molec cm-2 s-1 | 27750 meters | Dust aerosol, Reff = 2.4 microns (MW = 29.00 g mol-1) dry deposition flux | | `DRYDEPFLX_DST4` | molec cm-2 s-1 | 27750 meters | Dust aerosol, Reff = 4.5 microns (MW = 29.00 g mol-1) dry deposition flux | | `DRYDEPFLX_HCHO` | molec cm-2 s-1 | 27750 meters | Formaldehyde (CH2O, MW = 30.00 g mol-1) dry deposition flux | | `DRYDEPFLX_HNO3` | molec cm-2 s-1 | 27750 meters | Nitric acid (HNO3, MW = 63.00 g mol-1) dry deposition flux | | `DRYDEPFLX_NH3` | molec cm-2 s-1 | 27750 meters | Ammonia (NH3, MW = 17.00 g mol-1) dry deposition flux | | `DRYDEPFLX_NH4` | molec cm-2 s-1 | 27750 meters | Ammonium (NH4, MW = 18.00 g mol-1) dry deposition flux | | `DRYDEPFLX_NIT` | molec cm-2 s-1 | 27750 meters | Inorganic nitrates (MW = 62.00 g mol-1) dry deposition flux | | `DRYDEPFLX_NO2` | molec cm-2 s-1 | 27750 meters | Nitrogen dioxide (NO2, MW = 46.00 g mol-1) dry deposition flux | | `DRYDEPFLX_O3` | molec cm-2 s-1 | 27750 meters | Ozone (O3, MW = 48.00 g mol-1) dry deposition flux | | `DRYDEPFLX_OCPI` | molec cm-2 s-1 | 27750 meters | Hydrophilic organic carbon aerosol (MW = 12.01 g mol-1) dry deposition flux | | `DRYDEPFLX_OCPO` | molec cm-2 s-1 | 27750 meters | Hydrophobic organic carbon aerosol (MW = 12.01 g mol-1) dry deposition flux | | `DRYDEPFLX_SALA` | molec cm-2 s-1 | 27750 meters | Fine (0.01-0.05 microns) sea salt aerosol (MW = 31.40 g mol-1) dry deposition flux | | `DRYDEPFLX_SALC` | molec cm-2 s-1 | 27750 meters | Coarse (0.5-8 microns) sea salt aerosol (MW = 31.40 g mol-1) dry deposition flux | | `DST1` | Mol fraction | 27750 meters | Dust aerosol, Reff = 0.7 microns (MW = 29.00 g mol-1) volume mixing ratio dry air | | `DST2` | Mol fraction | 27750 meters | Dust aerosol, Reff = 1.4 microns (MW = 29.00 g mol-1) volume mixing ratio dry air | | `DST3` | Mol fraction | 27750 meters | Dust aerosol, Reff = 2.4 microns (MW = 29.00 g mol-1) volume mixing ratio dry air | | `DST4` | Mol fraction | 27750 meters | Dust aerosol, Reff = 4.5 microns (MW = 29.00 g mol-1) volume mixing ratio dry air | | `EOH` | Mol fraction | 27750 meters | Ethanol (C2H5OH, MW = 46.07 g mol-1) volume mixing ratio dry air | | `H2O2` | Mol fraction | 27750 meters | Hydrogen peroxide (H2O2, MW = 34.00 g mol-1) volume mixing ratio dry air | | `HCHO` | Mol fraction | 27750 meters | Formaldehyde (CH2O, MW = 30.00 g mol-1) volume mixing ratio dry air | | `HNO3` | Mol fraction | 27750 meters | Nitric acid (HNO3, MW = 63.00 g mol-1) volume mixing ratio dry air | | `HNO4` | Mol fraction | 27750 meters | Peroxynitric acid (HNO4, MW = 79.00 g mol-1) volume mixing ratio dry air | | `ISOP` | Mol fraction | 27750 meters | Isoprene (CH2=C(CH3)CH=CH2, MW = 68.12 g mol-1) volume mixing ratio dry air | | `MACR` | Mol fraction | 27750 meters | Methacrolein (CH2=C(CH3)CHO, MW = 70.00 g mol-1) volume mixing ratio dry air | | `MEK` | Mol fraction | 27750 meters | Methyl Ethyl Ketone (RC(O)R, MW = 72.11 g mol-1) volume mixing ratio dry air | | `MVK` | Mol fraction | 27750 meters | Methyl vinyl ketone (CH2=CHC(=O)CH3, MW = 70.00 g mol-1) volume mixing ratio dry air | | `N2O5` | Mol fraction | 27750 meters | Dinitrogen pentoxide (N2O5, MW = 108.00 g mol-1) volume mixing ratio dry air | | `NH3` | Mol fraction | 27750 meters | Ammonia (NH3, MW = 17.00 g mol-1) volume mixing ratio dry air | | `NH4` | Mol fraction | 27750 meters | Ammonium (NH4, MW = 18.00 g mol-1) volume mixing ratio dry air | | `NIT` | Mol fraction | 27750 meters | Inorganic nitrates (MW = 62.00 g mol-1) volume mixing ratio dry air | | `NO` | Mol fraction | 27750 meters | Nitrogen oxide (NO, MW = 30.00 g mol-1) volume mixing ratio dry air | | `NO2` | Mol fraction | 27750 meters | Nitrogen dioxide (NO2, MW = 46.00 g mol-1) volume mixing ratio dry air | | `NOy` | Mol fraction | 27750 meters | Reactive nitrogen = NO NO2 HNO3 HNO4 HONO 2xN2O5 PAN OrganicNitrates AerosolNitrates | | `O3` | Mol fraction | 27750 meters | Ozone (O3, MW = 48.00 g mol-1) volume mixing ratio dry air | | `OCPI` | Mol fraction | 27750 meters | Hydrophilic organic carbon aerosol (MW = 12.01 g mol-1) volume mixing ratio dry air | | `OCPO` | Mol fraction | 27750 meters | Hydrophobic organic carbon aerosol (MW = 12.01 g mol-1) volume mixing ratio dry air | | `PAN` | Mol fraction | 27750 meters | Peroxyacetyl nitrate (CH3C(O)OONO2, MW = 121.00 g mol-1) volume mixing ratio dry air | | `PHIS` | m\^2 s-2 | 27750 meters | Surface geopotential height | | `PM25_RH35_GCC` | ug m-3 | 27750 meters | Particulate matter with diameter below 2.5 um RH 35 | | `PM25_RH35_GOCART` | kg/m\^3 | 27750 meters | Total reconstructed PM2.5 RH 35 | | `PM25bc_RH35_GCC` | ug m-3 | 27750 meters | Black carbon particulate matter with diameter below 2.5 um RH 35 | | `PM25du_RH35_GCC` | ug m-3 | 27750 meters | Dust particulate matter with diameter below 2.5 um RH 35 | | `PM25ni_RH35_GCC` | ug m-3 | 27750 meters | Nitrate particulate matter with diameter below 2.5 um RH 35 | | `PM25oc_RH35_GCC` | ug m-3 | 27750 meters | Organic carbon particulate matter with diameter below 2.5 um RH 35 | | `PM25soa_RH35_GCC` | ug m-3 | 27750 meters | Secondary organic aerosol particulate matter with diameter below 2.5 um RH 35 | | `PM25ss_RH35_GCC` | ug m-3 | 27750 meters | Seasalt particulate matter with diameter below 2.5 um RH 35 | | `PM25su_RH35_GCC` | ug m-3 | 27750 meters | Sulfate particulate matter with diameter below 2.5 um RH 35 | | `PRPE` | Mol fraction | 27750 meters | Lumped \>= C3 alkenes (C3H6, MW = 42.08 g mol-1) volume mixing ratio dry air | | `PS` | Pa | 27750 meters | Surface pressure | | `Q` | Mass fraction | 27750 meters | Specific humidity | | `Q10M` | Mass fraction | 27750 meters | 10-meter specific humidity | | `Q2M` | Mass fraction | 27750 meters | 2-meter specific humidity | | `RCHO` | Mol fraction | 27750 meters | Lumped aldehyde \>= C3 (CH3CH2CHO, MW = 58.00 g mol-1) volume mixing ratio dry air | | `RH` | | 27750 meters | Relative humidity after moist | | `SALA` | Mol fraction | 27750 meters | Fine (0.01-0.05 microns) sea salt aerosol (MW = 31.40 g mol-1) volume mixing ratio dry air | | `SALC` | Mol fraction | 27750 meters | Coarse (0.5-8 microns) sea salt aerosol (MW = 31.40 g mol-1) volume mixing ratio dry air | | `SLP` | Pa | 27750 meters | Sea level pressure | | `SO2` | Mol fraction | 27750 meters | Sulfur dioxide (SO2, MW = 64.00 g mol-1) volume mixing ratio dry air | | `SOAP` | Mol fraction | 27750 meters | SOA Precursor - lumped species for simplified SOA parameterization (MW = 150.00 g mol-1) volume mixing ratio dry air | | `SOAS` | Mol fraction | 27750 meters | SOA Simple - simplified non-volatile SOA parameterization (MW = 150.00 g mol-1) volume mixing ratio dry air | | `T` | K | 27750 meters | Air temperature | | `T10M` | K | 27750 meters | 10-meter air temperature | | `T2M` | K | 27750 meters | 2-meter air temperature | | `TOLU` | Mol fraction | 27750 meters | Toluene (C7H8, MW = 92.14 g mol-1) volume mixing ratio dry air | | `TOTCOL_BrO` | 1.0e15 molec cm-2 | 27750 meters | Bromine monoxide (BrO, MW = 96.00 g mol-1) total column density | | `TOTCOL_CO` | 1.0e15 molec cm-2 | 27750 meters | Carbon monoxide (CO, MW = 28.00 g mol-1) total column density | | `TOTCOL_HCHO` | 1.0e15 molec cm-2 | 27750 meters | Formaldehyde (CH2O, MW = 30.00 g mol-1) total column density | | `TOTCOL_IO` | 1.0e15 molec cm-2 | 27750 meters | Iodine monoxide (IO, MW = 143.00 g mol-1) total column density | | `TOTCOL_NO2` | 1.0e15 molec cm-2 | 27750 meters | Nitrogen dioxide (NO2, MW = 46.00 g mol-1) total column density | | `TOTCOL_O3` | Dobson | 27750 meters | Ozone (O3, MW = 48.00 g mol-1) total column density | | `TOTCOL_SO2` | 1.0e15 molec cm-2 | 27750 meters | Sulfur dioxide (SO2, MW = 64.00 g mol-1) total column density | | `TPREC` | kg/m\^2/s | 27750 meters | Total precipitation | | `TROPCOL_BrO` | 1.0e15 molec cm-2 | 27750 meters | Bromine monoxide (BrO, MW = 96.00 g mol-1) tropospheric column density | | `TROPCOL_CO` | 1.0e15 molec cm-2 | 27750 meters | Carbon monoxide (CO, MW = 28.00 g mol-1) tropospheric column density | | `TROPCOL_HCHO` | 1.0e15 molec cm-2 | 27750 meters | Formaldehyde (CH2O, MW = 30.00 g mol-1) tropospheric column density | | `TROPCOL_IO` | 1.0e15 molec cm-2 | 27750 meters | Iodine monoxide (IO, MW = 143.00 g mol-1) tropospheric column density | | `TROPCOL_NO2` | 1.0e15 molec cm-2 | 27750 meters | Nitrogen dioxide (NO2, MW = 46.00 g mol-1) tropospheric column density | | `TROPCOL_O3` | Dobson | 27750 meters | Ozone (O3, MW = 48.00 g mol-1) tropospheric column density | | `TROPCOL_SO2` | 1.0e15 molec cm-2 | 27750 meters | Sulfur dioxide (SO2, MW = 64.00 g mol-1) tropospheric column density | | `TROPPB` | Pa | 27750 meters | Tropopause pressure based on blended estimate | | `TS` | K | 27750 meters | Surface skin temperature | | `U` | m/s | 27750 meters | Eastward wind | | `U10M` | m/s | 27750 meters | 10-meter eastward wind | | `U2M` | m/s | 27750 meters | 2-meter eastward wind | | `V` | m/s | 27750 meters | Northward wind | | `V10M` | m/s | 27750 meters | 10-meter northward wind | | `V2M` | m/s | 27750 meters | 2-meter northward wind | | `WETDEPFLX_BCPI` | kg/m\^2/s | 27750 meters | Hydrophilic black carbon aerosol (MW = 12.01 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_BCPO` | kg/m\^2/s | 27750 meters | Hydrophobic black carbon aerosol (MW = 12.01 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_DST1` | kg/m\^2/s | 27750 meters | Dust aerosol, Reff = 0.7 microns (MW = 29.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_DST2` | kg/m\^2/s | 27750 meters | Dust aerosol, Reff = 1.4 microns (MW = 29.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_DST3` | kg/m\^2/s | 27750 meters | Dust aerosol, Reff = 2.4 microns (MW = 29.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_DST4` | kg/m\^2/s | 27750 meters | Dust aerosol, Reff = 4.5 microns (MW = 29.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_HCHO` | kg/m\^2/s | 27750 meters | Formaldehyde (CH2O, MW = 30.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_HNO3` | kg/m\^2/s | 27750 meters | Nitric acid (HNO3, MW = 63.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_NH3` | kg/m\^2/s | 27750 meters | Ammonia (NH3, MW = 17.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_NH4` | kg/m\^2/s | 27750 meters | Ammonium (NH4, MW = 18.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_NIT` | kg/m\^2/s | 27750 meters | Inorganic nitrates (MW = 62.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_OCPI` | kg/m\^2/s | 27750 meters | Hydrophilic organic carbon aerosol (MW = 12.01 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_OCPO` | kg/m\^2/s | 27750 meters | Hydrophobic organic carbon aerosol (MW = 12.01 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_SALA` | kg/m\^2/s | 27750 meters | Fine (0.01-0.05 microns) sea salt aerosol (MW = 31.40 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_SALC` | kg/m\^2/s | 27750 meters | Coarse (0.5-8 microns) sea salt aerosol (MW = 31.40 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_SO2` | kg/m\^2/s | 27750 meters | Sulfur dioxide (SO2, MW = 64.00 g mol-1) vertical integrated loss due to wet scavenging | | `WETDEPFLX_SO4` | kg/m\^2/s | 27750 meters | Sulfate (SO4, MW = 96.00 g mol-1) vertical integrated loss due to wet scavenging | | `XYLE` | Mol fraction | 27750 meters | Xylene (C8H10, MW = 106.16 g mol-1) volume mixing ratio dry air | | `ZL` | m | 27750 meters | Mid layer heights | | `ZPBL` | m | 27750 meters | Planetary boundary layer height | ### Terms of Use **Terms of Use** Unless otherwise noted, all NASA-produced data may be used for any purpose without prior permission. For more information and exceptions visit the [NASA Data \& Information Policy page](https://earthdata.nasa.gov/collaborate/open-data-services-and-software/data-information-policy). ### Citations Citations: - Keller, C. A., Knowland, K. E., Duncan, B. N., Liu, J., Anderson, D. C., Das, S., ... \& Pawson, S. (2021). Description of the NASA GEOS composition forecast modeling system GEOS-CF v1. 0. Journal of Advances in Modeling Earth Systems, 13(4), e2020MS002413. [doi:10.1029/2020MS002413](https://doi.org/10.1029/2020MS002413) ### DOIs - ### Explore with Earth Engine > [!NOTE] > **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine) ### Code Editor (JavaScript) ```javascript var imageVisParamNO2 = { 'bands': ['NO2'], 'min': 6.96e-11, 'max': 4.42e-8, }; var imageVisParamT = { 'bands': ['T'], 'min': 220, 'max': 320, 'palette': ['d7191c', 'fdae61', 'ffffbf', 'abd9e9', '2c7bb6'], }; var geosCf = ee.ImageCollection('NASA/GEOS-CF/v1/rpl/tavg1hr'); Map.setCenter(100, 20, 3); var weeklyT = geosCf.select('T').filterDate('2018-01-01', '2018-01-08').median(); Map.addLayer(weeklyT, imageVisParamT, 'Weekly T', false, 1); var NO2 = ee.Image('NASA/GEOS-CF/v1/rpl/tavg1hr/20180101_0030z'); Map.addLayer(NO2, imageVisParamNO2, 'NO2', true, 1); ``` [Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_GEOS-CF_v1_rpl_tavg1hr) [GEOS-CF rpl tavg1hr v1: Goddard Earth Observing System Composition Forecast](https://developers.google.com/earth-engine/datasets/catalog/NASA_GEOS-CF_v1_rpl_tavg1hr) This dataset contains meteorological replay (rpl) of time-average one hour data (tavg1hr). It is built by merging the original GEOS-CF collections chm_tavg_1hr_g1440x721_v1, met_tavg_1hr_g1440x721_x1, and xgc_tavg_1hr_g1440x721_x1. The Goddard Earth Observing System Composition Forecast (GEOS-CF) system is a global constituent prediction system from NASA's Global Modeling and Assimilation Office (GMAO). GEOS-CF offers ... NASA/GEOS-CF/v1/rpl/tavg1hr, atmosphere,composition,forecast,geos,gmao,nasa 2018-01-01T00:00:00Z/2026-01-02T11:00:00Z -90 -180 90 180 Google Earth Engine https://developers.google.com/earth-engine/datasets - [https://doi.org/10.1029/2020MS002413](https://doi.org/https://gmao.gsfc.nasa.gov/gmao-products/geos-cf/) - [https://doi.org/10.1029/2020MS002413](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_GEOS-CF_v1_rpl_tavg1hr)