AndreaBozzo/ceres-open-data-index huggingface dataset:
MODIS/Aqua Clouds 1km and 5km 5-Min L2 Narrow Swath Subset along CloudSat V002 (MAC06S0) at GES DISC

This is the narrow-swath MODIS/Aqua subset along CloudSat field of view track. The goal of the narrow-swath subset is to select and return MODIS data that are within +-5 km across the CloudSat track. I.e. the resultant MODIS subset swath is sought to be about 10 km cross-track. However, the original MYD06_L2 has data of 5- and 1-km pixels. Thus, MAC06S0 cross-track width is 3- and 11-pixels, depending on the parameter, and the resultant swath is about 15- and 10-km, correspondingly. Along-track, all MODIS pixels from the original product are preserved. In the standard product, the level-2 MODIS cloud product consists of cloud optical and physical parameters. These parameters are derived using remotely sensed infrared, visible and near infrared solar reflected radiances. MODIS infrared channel radiances are used to derive cloud top temperature, cloud top height, effective emissivity, cloud phase (ice vs. water, opaque vs. non-opaque), and cloud fraction under both daytime and nighttime conditions. MODIS visible radiances are used to derive cloud optical thickness and effective particle radius and cloud shadow effects. Near infrared solar reflected radiance provides additional information in the retrieval of cloud particle phase (ice vs. water, clouds vs. snow). The shortname for this level-2 MODIS cloud product is MAC06S0. YD06_L2 and the principal investigators for this product are MODIS scientists Dr. Bo-Cai Gao (gao@rsd.nrl.navy.mil) for cirrus cloud detection; Dr. Paul Menzel (paulm@ssec.wisc.edu) for cloud top properties; and Dr. Michael King(king@climate.gsfc.nasa.gov) for cloud optical properties. (The shortname for this product is MAC06S0).

Tags: earth-science-clouds-atmosphere-cloud-microphysics-cloud-droplet-concentration-size, earth-science-clouds-atmosphere-cloud-microphysics-cloud-liquid-water-ice, earth-science-clouds-atmosphere-cloud-microphysics-cloud-optical-depth-thickness, earth-science-clouds-atmosphere-cloud-properties-cloud-frequency, earth-science-clouds-atmosphere-cloud-properties-cloud-top-pressure, earth-science-clouds-atmosphere-cloud-properties-cloud-top-temperature, earth-science-clouds-atmosphere-cloud-radiative-transfer-cloud-emissivity, earth-science-clouds-atmosphere-cloud-radiative-transfer-cloud-reflectance
Organization: National Aeronautics and Space Administration
MODIS/Aqua L2G Daytime Pointers, Daily 500m NRT

The MODIS/Aqua L2G Daytime Pointers Daily 500m Near Real Time (NRT), short name MYDPTHKM, product stores information about the spatial relationship between each sensor observation and output grid cell. MYDPTHKM files are used as input to higher-level products such as MODIS Surface Reflectance. Geometric information for each sensor observation is stored on a geolocated grid with Level-2 geophysical parameters stored as Level-2G gridded products. The multiple observations stored in the L2G grids are examined by the Level-3 processes to extract only the most relevant observations per grid cell.

Tags: earth-science-sensor-characteristics-spectral-engineering-viewing-geometry
Organization: National Aeronautics and Space Administration
MODIS/Aqua Geolocation Fields 5-Min L1A Swath 1km - NRT

The Near Real Time (NRT) geolocation fields are calculated for each 1 km MODIS Instantaneous Field of Views (IFOV) for all orbits daily. The locations and ancillary information corresponds to the intersection of the centers of each IFOV from 10 detectors in an ideal 1 km band on the Earth's surface. A digital terrain model is used to model the Earth's surface. The main inputs are the spacecraft attitude and orbit, the instrument telemetry and the digital elevation model. The geolocation fields include geodetic Latitude, Longitude, surface height above geoid, solar zenith and azimuth angles, satellite zenith and azimuth angles, and a land/sea mask for each 1 km sample. Additional information is included in the header to enable the calculation of the approximate location of the center of the detectors of any of the 36 MODIS bands. This product is used as input by a large number of subsequent MODIS products, particularly the products produced by the Land team.The shortname for this product is MYD03.

Tags: earth-science-platform-characteristics-spectral-engineering-attitude-characteristics, earth-science-platform-characteristics-spectral-engineering-orbital-characteristics, earth-science-platform-characteristics-spectral-engineering-viewing-geometry
Organization: National Aeronautics and Space Administration
MODIS/Aqua Gross Primary Productivity 8-Day L4 Global 500m SIN Grid V006

The MYD17A2H Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the [MYD17A2H Version 6.1](https://doi.org/10.5067/MODIS/MYD17A2H.061) data product. The MYD17A2H Version 6 Gross Primary Productivity (GPP) product is a cumulative 8-day composite of values with 500 meter (m) pixel size based on the radiation use efficiency concept that can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. The data product includes information about GPP and Net Photosynthesis (PSN). The PSN band values are the GPP minus the Maintenance Respiration (MR). The data product also contains a PSN Quality Control (QC) layer. The quality layer contains quality information for both the GPP and the PSN. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=6). Improvements/Changes from Previous Versions * The product uses updated Biome Property Look-Up Tables (BPLUT) and an updated version of the daily Global Modeling and Assimilation Office (GMAO) meteorological data. * The products are now generated at the native resolution of 500 m using the Moderate Resolution Imaging Spectroradiometer (MODIS) Leaf Area Index (LAI)/Fraction of Photosynthetically Active Radiation (FPAR) ([MYD15A2H](https://doi.org/10.5067/modis/myd15a2h.006)) 8-day composite at 500 m resolution.

Tags: earth-science-ecological-dynamics-biosphere-ecosystem-functions-photosynthesis, earth-science-ecological-dynamics-biosphere-ecosystem-functions-primary-production
Organization: National Aeronautics and Space Administration
MODIS/Aqua Geolocation Fields 1km 5-Min 1A Wide Swath Subset along CloudSat V002 (MAC03S1) at GES DISC

This is the wide-swath MODIS/Aqua subset along CloudSat field of view track. The goal of the wide-swath subset is to select and return MODIS data that are within +-100 km across the CloudSat track. I.e. the resultant MODIS subset swath is about 200 km cross-track. Thus, MAC03S1 cross-track width is 201 pixels. Along-track, all MODIS pixels from the original product are preserved. In the standard product, geolocation fields are calculated for each 1 km MODIS Instantaneous Field of Views (IFOV) for all orbits daily. The locations and ancillary information corresponds to the intersection of the centers of each IFOV from 10 detectors in an ideal 1 km band on the Earth's surface. A digital terrain model is used to model the Earth's surface. The main inputs are the spacecraft attitude and orbit, the instrument telemetry and the digital elevation model. The geolocation fields include geodetic Latitude, Longitude, surface height above geoid, solar zenith and azimuth angles, satellite zenith and azimuth angles, and a land/sea mask for each 1 km sample. Additional information is included in the header to enable the calculation of the approximate location of the center of the detectors of any of the 36 MODIS bands. This product is used as input by a large number of subsequent MODIS products, particularly the products produced by the Land team. (The shortname for this product is MAC03S1).

Tags: earth-science-platform-characteristics-spectral-engineering-attitude-characteristics, earth-science-platform-characteristics-spectral-engineering-orbital-characteristics, earth-science-sensor-characteristics-spectral-engineering-viewing-geometry, earth-science-topography-land-surface-terrain-elevation
Organization: National Aeronautics and Space Administration
MODIS/Aqua Land Surface Temperature/Emissivity 5-Min L2 Swath 1km NRT

The MODIS/Aqua Land Surface Temperature/Emissivity 5-Min L2 Swath 1km Near Real Time (NRT), short name MYD11_L2, incorporate 1 km pixels, which are produced daily at 5-minute increments using the generalized split-window algorithm. This algorithm is optimally used to separate ranges of atmospheric column water vapor and lower boundary air surface temperatures into tractable sub-ranges. The surface emissivities in bands 31 and 32 are estimated from land cover types. The data inputs include the MODIS L1B calibrated and geolocated radiances, geolocation, cloud mask, atmospheric profiles, land and snow cover. The MYD11_L2 data set comprises swath data obtained in 5-minute sensor collection periods, and includes the following Science Data Set (SDS) layers:- LST- Quality control assessment- Error estimates- Bands 31 and 32 emissivities- Zenith angle of the pixel view- Observation time- Geographic coordinates for every five scan lines and samples.Produced daily, MYD11_L2 is an unprojected level-2 product, which provides the input for the level-3 products.

Tags: earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration
MODIS/Aqua Land Surface Temperature/3-Band Emissivity 5-Min L2 1km NRT

The MODIS/Aqua Land Surface Temperature/3-Band Emissivity (LST&E) 5-Min L2 1km data product, short-name MYD21 is produced daily in five minute temporal increments of satellite acquisition. The swath is approximately 2,030 pixels along track and 1,354 pixels per line, at a nadir resolution of 1,000 meters. The MYD21 Land Surface Temperature (LST) algorithm differs from the MYD11 (https://doi.org/10.5067/modis/myd11_l2.061) algorithm in that the MYD21 LST algorithm is based on the ASTER Temperature/Emissivity Separation (TES) technique, whereas the MYD11 uses the split-window technique. Additional details regarding the method used to create this Level 2 (L2) product are available in the Algorithm Theoretical Basis Document (ATBD (https://lpdaac.usgs.gov/documents/107/MOD21_ATBD.pdf)). The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and more.

Tags: earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration
MODIS/Aqua Land Surface Temperature/Emissivity 5-Min L2 Swath 1km V061

The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature/Emissivity 5-Minute (MYD11_L2) Version 6.1 swath product provides per-pixel Land Surface Temperature and Emissivity (LST&E) with a pixel size of 1,000 meters (m). The product is produced daily in 5-minute temporal increments of satellite acquisition using the generalized split-window algorithm. MYD11_L2 is a Level 2 product which provides the input for the Level 3 products. Provided in each MYD11_L2 file are LST, quality control assessment, error estimates, bands 31 and 32 emissivities, zenith angle of the pixel view, observation time, and the geographic coordinates for every five scan lines and samples. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=61). Improvments/Changes from Previous Version * The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 - 2017. * A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).

Tags: earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration
MODIS/Aqua Gross Primary Productivity Gap-Filled 8-Day L4 Global 500m SIN Grid V006

The MYD17A2HGF Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the [MYD17A2HGF Version 6.1](https://doi.org/10.5067/MODIS/MYD17A2HGF.061) data product. The MYD17A2HGF Version 6 Gross Primary Productivity (GPP) Gap-Filled product is a cumulative 8-day composite of values with 500 meter (m) pixel size based on the radiation use efficiency concept that can be potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. The data product includes information about GPP and Net Photosynthesis (PSN). The PSN band values are the GPP less the Maintenance Respiration (MR). The data product also contains a PSN Quality Control (QC) layer. The quality layer contains quality information for both the GPP and the PSN. The MYD17A2HGF will be generated at the end of each year when the entire yearly 8-day [MYD15A2H](https://doi.org/10.5067/modis/myd15a2h.006) is available. Hence, the gap-filled MYD17A2HGF is the improved MYD17, which has cleaned the poor-quality inputs from 8-day Leaf Area Index and Fraction of Photosynthetically Active Radiation (LAI/FPAR) based on the Quality Control (QC) label for every pixel. If any LAI/FPAR pixel did not meet the quality screening criteria, its value is determined through linear interpolation. However, users cannot get MYD17A2HGF in near-real time because it will be generated only at the end of a given year. Known Issues * Operational and uncertainty issues are provided under Section 2 in the User Guide. * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=6). Improvements/Changes from Previous Versions * The product uses updated Biome Property Look-Up Tables (BPLUT) and an updated version of the daily Global Modeling and Assimilation Office (GMAO) meteorological data. * The products are now generated at the native resolution of 500 m using the Moderate Resolution Imaging Spectroradiometer (MODIS) Leaf Area Index (LAI)/Fraction of Photosynthetically Active Radiation (FPAR) ([MYD15A2H](https://doi.org/10.5067/modis/myd15a2h.006)) 8-day composite at 500 m resolution.

Tags: earth-science-ecological-dynamics-biosphere-ecosystem-functions-photosynthesis, earth-science-ecological-dynamics-biosphere-ecosystem-functions-primary-production
Organization: National Aeronautics and Space Administration
MODIS/Aqua Land Surface Temperature/Emissivity Daily L3 Global 1km SIN Grid V061

The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature/Emissivity Daily (MYD11A1) Version 6.1 product provides daily per-pixel Land Surface Temperature and Emissivity (LST&E) with 1 kilometer (km) spatial resolution in a 1,200 by 1,200 km grid. The pixel temperature value is derived from the [MYD11_L2](https://doi.org/10.5067/MODIS/MYD11_L2.061) swath product. Above 30 degrees latitude, some pixels may have multiple observations where the criteria for clear-sky are met. When this occurs, the pixel value is a result of the average of all qualifying observations. Provided along with the daytime and nighttime surface temperature bands are associated quality control assessments, observation times, view zenith angles, and clear-sky coverages along with bands 31 and 32 emissivities from land cover types. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=61). Improvments/Changes from Previous Version * The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 - 2017. * A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).

Tags: earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration
MODIS/Aqua Cloud Properties COSP Level 3 daily, 1x1 deg. grid

The MODIS/Aqua Cloud Properties COSP Level 3 daily, 1x1 degree grid product is a new L3 CLDPROP COSP Cloud product with short-name CLDPROPCOSP_D3_MODIS_Aqua. It contains MODIS Aqua cloud mask, cloud top, and cloud optical retrieval data over daily timeframe. It provides a set of custom cloud-related parameters for better comparison with climate model output. The “COSP” acronym in the short-name stands for Cloud Feedback Model Intercomparison Project (CFMIP) Observation Simulator Package. Provided in netCDF4 format, it contains 32 aggregated science data sets (SDS/parameters). Consult the CLDPROPCOSP User Guide for details regarding how the L3 daily statistics are computed, and to learn more about the gridding and sampling protocols specific to this product and a number of other topics germane to the user community. The collection of this product starts from July 4, 2002 and includes 365 granules each calendar year.

Tags: earth-science-atmospheric-radiation-atmosphere-optical-depth-thickness, earth-science-clouds-atmosphere, earth-science-clouds-atmosphere-cloud-microphysics-cloud-condensation-nuclei, earth-science-clouds-atmosphere-cloud-microphysics-cloud-droplet-concentration-size, earth-science-clouds-atmosphere-cloud-microphysics-cloud-liquid-water-ice, earth-science-clouds-atmosphere-cloud-microphysics-cloud-optical-depth-thickness, earth-science-clouds-atmosphere-cloud-microphysics-cloud-precipitable-water, earth-science-clouds-atmosphere-cloud-properties-cloud-frequency, earth-science-clouds-atmosphere-cloud-properties-cloud-height, earth-science-clouds-atmosphere-cloud-properties-cloud-top-pressure, earth-science-clouds-atmosphere-cloud-properties-cloud-vertical-distribution
Organization: National Aeronautics and Space Administration
MODIS/Aqua Land Surface Temperature/Emissivity 8-Day L3 Global 1km SIN Grid V006

The MYD11A2 Version 6 data product was decommissioned on July 31, 2023. Users are encouraged to use the [MYD11A2 Version 6.1](https://doi.org/10.5067/MODIS/MYD11A2.061) data product. The MYD11A2 Version 6 product provides an average 8-day per-pixel Land Surface Temperature and Emissivity (LST&E) with a 1 kilometer (km) spatial resolution in a 1,200 by 1,200 km grid. Each pixel value in the MYD11A2 is a simple average of all the corresponding [MYD11A1](https://doi.org/10.5067/MODIS/MYD11A1.006) LST pixels collected within that 8-day period. The 8-day compositing period was chosen because twice that period is the exact ground track repeat period of the Terra and Aqua platforms. Provided along with the daytime and nighttime surface temperature bands are associated quality control assessments, observation times, view zenith angles, and clear-sky coverages along with bands 31 and 32 emissivities from land cover types. Known Issues For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=6). Improvements/Changes from Previous Versions * Removed cloud-contaminated LSTs from Level 2 and Level 3 LST products. * Updated the coefficient look-up table (LUT) for the split-window algorithm with comprehensive regression analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) simulation data in bands 31 and 32 over wide ranges of surface and atmospheric conditions, especially extending the upper boundary for (LST – Ts-air) in arid and semi-arid regions. Increased the overlap between various sub-ranges to reduce the sensitivity of the algorithm to uncertainties in the input data (i.e., column water vapor and air surface temperature from MYD07). * Made minor adjustments in the classification-based surface emissivity values, especially for bare soil and rocks land cover types. * Tuned the day/night algorithm by adjusting weights to improve performance in desert regions where the incorporated split-window algorithm may not work well. * Generated new gridded LST&E products with a 6 km spatial resolution for 8-day ([MYD11B2](https://doi.org/10.5067/MODIS/MYD11B2.006)) and monthly ([MYD11B3](https://doi.org/10.5067/MODIS/MYD11B3.006)) intervals in response to user community requests.

Tags: earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration
MODIS/Aqua Land Surface Temperature/Emissivity 8-Day L3 Global 6km SIN Grid V061

The Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Land Surface Temperature/Emissivity 8-Day (MYD11B2) Version 6.1 product provides an average 8-day per pixel Land Surface Temperature and Emissivity (LST&E) in a 1,200 by 1,200 kilometer (km) tile with a pixel size of 5,600 meters (m). Each temperature and emissivity pixel value in the MYD11B2 is a simple average of all the corresponding values from the LST&E values from the [MYD11B1](https://doi.org/10.5067/MODIS/MYD11B1.061) product collected during that 8-day period. Each MYD11B2 granule consists of 19 layers including daytime and nighttime layers for LSTs, quality control assessments, observation times, view zenith angles, and number of clear sky observations along with percentage of land in the tile and emissivities from bands 20, 22, 23, 29, 31, and 32. Unique to the MOD11B products are additional day and night LST layers generated from band 31 of the corresponding 1 km [MYD11_L2](https://doi.org/10.5067/MODIS/MYD11_L2.061) swath product aggregated to the 6 km grid. Known Issues * For complete information about known issues please refer to the [MODIS/VIIRS Land Quality Assessment website](https://landweb.modaps.eosdis.nasa.gov/knownissue?sensor=MODIS&sat=Aqua&as=61). Improvments/Changes from Previous Version * The Version 6.1 Level-1B (L1B) products have been improved by undergoing various calibration changes that include: changes to the response-versus-scan angle (RVS) approach that affects reflectance bands for Aqua and Terra MODIS, corrections to adjust for the optical crosstalk in Terra MODIS infrared (IR) bands, and corrections to the Terra MODIS forward look-up table (LUT) update for the period 2012 - 2017. * A polarization correction has been applied to the L1B Reflective Solar Bands (RSB).

Tags: earth-science-surface-radiative-properties-land-surface-emissivity, earth-science-surface-thermal-properties-land-surface-land-surface-temperature
Organization: National Aeronautics and Space Administration