124 datasets

NASA Earthdata CMR2026 · collection

The Solar Backscattered Ultraviolet (SBUV) from Nimbus-7 Level-2 daily product (SBUVN07L2) contains ozone nadir profile and total column data from retrievals generated from the v8.7 SBUV algorithm. The v8.7 SBUV algorithm estimates the ozone nadir profile and total column from SBUV measurements using 1) the Brion-Daumont-Malicet ozone cross sections, 2) an OMI-derived cloud-height climatology, 3)

NASA Earthdata CMR + NASA Data Portal2026 · Astronomical catalogue

AAOE_TOMS_ER2_Data is the Total Ozone Mapping Spectrometer (TOMS) data collected along the flight path of the ER-2 aircraft during the Airborne Antarctic Ozone Experiment (AAOE) suborbital campaign. Data collection for this product is complete. The AAOE suborbital campaign was an international and multi-organizational campaign with NASA, NOAA, NSF, and Chemical Manufacturer’s Association (CMA). It

NASA Earthdata CMR + NASA Data Portal2026 · Astronomical catalogue

AAOE_TOMS_DC8_Data is the Total Ozone Mapping Spectrometer (TOMS) data collected along the flight path of the DC-8 aircraft during the Airborne Antarctic Ozone Experiment (AAOE) suborbital campaign. Data collection for this product is complete. The AAOE suborbital campaign was an international and multi-organizational campaign with NASA, NOAA, NSF, and Chemical Manufacturer’s Association (CMA). It

NASA Earthdata CMR + NASA Data Portal2026 · Astronomical catalogue

AASE_Satellite_Data is the satellitel data collected during the Airborne Arctic Stratospheric Expedition (AASE) suborbital campaign. Data from the Total Ozone Mapping Spectrometer (TOMS) and Stratospheric Aerosol Measurement II (SAM II) is featured in this collection. Data collection for this product is complete. The AASE campaign was a joint mission by NASA, NOAA, and the National Science Foundat

NASA Earthdata CMR + NASA Data Portal2026 · Astronomical catalogue

AASE2_Satellite_Data is the satellite data collected during the Airborne Arctic Stratospheric Expedition II (AASE II) suborbital campaign. Data from the Total Ozone Mapping Spectrometer (TOMS) is featured in this collection. Data collection for this product is complete. The AASE campaign was a joint mission by NASA, NOAA, and the National Science Foundation (NSF). While this is one overarching cam

NASA Earthdata CMR + NASA Data Portal2026 · Array · NetCDF

NSIDC-0747 contains melt-season indicators that can be used to delineate various stages in the summer melt and freeze-up period of sea ice. The data were primarily derived using Sea Ice Concentration (SIC) observations from the NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration (G02202) and the Snow Melt Onset Dates (NSIDC-0105) from SSM/I-SSMIS Brightness Temperatures produ

NASA Earthdata CMR + NASA Data Portal2026 · Image data

The GSFC TOMS CCD L3 5x5deg Monthly Tropospheric Column Ozone product (TrCO3_Monthly_TOMS) contains tropospheric column ozone amounts averaged by month from 1979 to 2005. Total column measurements are obtained from the Total Ozone Monitoring Sensor (TOMS) on the Nimbus-7 (1979-1993) and the Earth Probe (1996-2005) satellites. Tropospheric column ozone (TCO) is determined using the convective-cloud

NASA Earthdata CMR2025 · collection

This dataset contains v4.0 of the Daily Snow Water Equivalent (SWE) product from the ESA Climate Change Initiative (CCI) Snow project, at 0.1 degree resolution.Snow water equivalent (SWE) is the depth of liquid water that would result if the of snow cover melted completely, which equates to the snow cover mass per unit area. The SWE product covers the Northern Hemisphere from 1979/01 to 2023/12 wi

NASA Earthdata CMR + NASA Data Portal2025 · Image data

THIRN7L1NCLE is the Nimbus-7 Temperature-Humidity Infrared Radiometer (THIR) Level 1 Cloud Data in ERB Format (NCLE) product and was generated from the THIR 11.5-micrometer radiances, the TOMS derived UV (0.36 and 0.38 micrometer) reflectivities, and the Air Force surface temperature. Data consist of total cloud amounts in percent coverage; cloud amounts at three altitudes: low (below 2 km), middl

NASA Earthdata CMR + NASA Data Portal2025 · Image data

Version 4 is the current version of the data set. Older versions are no longer available and have been superseded by Version 4. These data are a part of MEaSUREs 2012 projects. The particular project, "Multi-Decadal Sulfur Dioxide Climatology from Satellite Instruments", is expected to produce SO2 Earth Science Data Record by means of combining measurements from backscatter Ultraviolet (BUV), ther

NASA Earthdata CMR2024 · Array · NetCDF

The Remote Sensing Reflectance (RRS) suite provides the remote sensing reflectance at wavelength λ (nm)—the ratio of water-leaving radiance to downwelling irradiance just above the surface (units sr⁻¹). Variables are named by their band center (e.g., Rrs_412, Rrs_443). Rrs_λ is the foundational observable used to retrieve products such as chlor_a, Kd_490, IOPs, and to support algorithm development

NASA Earthdata CMR2024 · Array · NetCDF

The Chlorophyll-a data suite provides global, gridded composites of surface chlorophyll-a concentration (a proxy for phytoplankton biomass). CHL supports time-series and climatologies, anomaly detection, ecosystem and fisheries applications, and teaching/training, and pairs well with AVW, PAR, Kd(490), SST, and winds for environmental context. Note: retrievals in optically complex coastal/inland w

NASA Earthdata CMR2024 · Array · NetCDF

The KD data suite provides diffuse attenuation coefficient of downwelling irradiance at 490 nm, Kd_490, which quantifies how quickly blue-green light diminishes with depth—an indicator of water clarity and the depth to which sunlight penetrates. Kd_490 is generated from ocean-color reflectance using the KD2 algorithm. Lower values indicate clearer water (deeper light penetration); users commonly a

NASA Earthdata CMR2024 · Array · NetCDF

The KD data suite provides diffuse attenuation coefficient of downwelling irradiance at 490 nm, Kd_490, which quantifies how quickly blue-green light diminishes with depth—an indicator of water clarity and the depth to which sunlight penetrates. Kd_490 is generated from ocean-color reflectance using the KD2 algorithm. Lower values indicate clearer water (deeper light penetration); users commonly a

NASA Earthdata CMR2024 · Array · NetCDF

The Remote Sensing Reflectance (RRS) suite provides the remote sensing reflectance at wavelength λ (nm)—the ratio of water-leaving radiance to downwelling irradiance just above the surface (units sr⁻¹). Variables are named by their band center (e.g., Rrs_412, Rrs_443). Rrs_λ is the foundational observable used to retrieve products such as chlor_a, Kd_490, IOPs, and to support algorithm development

NASA Earthdata CMR2024 · Array · NetCDF

The Ocean Color (OC) data suite provides calibrated, atmospherically corrected ocean-optics measurements and derived biogeophysical products. This data suite includes the Apparent Optical Properties (AOP) and provides satellite-derived measures of the interaction between solar radiation and the upper ocean. AOPs are “apparent” because they depend not only on the inherent optical properties (IOPs)

NASA Earthdata CMR2024 · Array · NetCDF

The Chlorophyll-a data suite provides global, gridded composites of surface chlorophyll-a concentration (a proxy for phytoplankton biomass). CHL supports time-series and climatologies, anomaly detection, ecosystem and fisheries applications, and teaching/training, and pairs well with AVW, PAR, Kd(490), SST, and winds for environmental context. Note: retrievals in optically complex coastal/inland w

NASA Earthdata CMR2024 · Array · NetCDF

Level 1A (L1A) data are reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information. This ancillary information can include radiometric and geometric calibration coefficients and georeferencing parameters (e.g., platform ephemeris).

NASA Earthdata CMR2024 · collection

Level-0 data are reconstructed, unprocessed instrument and payload data at full resolution, with any and all communications artifacts (e.g., synchronization frames, communications headers, duplicate data) removed.

NASA Earthdata CMR2024 · Array · NetCDF

The Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 2 data set is a multi-sensor Level 3 Earth Science Data Record (ESDR) with improvements upon Version 1 in cross-sensor calibration and quality checking, modern file formats, better quality control, improved projection grids, and local time-of-day (LTOD) processing. These data are gridded t

NASA Earthdata CMR + NASA Data Portal2024 · Astronomical catalogue

TRACE-A_Satellite_Data is the supplementary satellite data collected during the Transport and Atmospheric Chemistry near the Equator - Atlantic (TRACE-A) suborbital campaign. Data from the NOAA 10, 11, and 12 satellites and the Total Ozone Mapping Spectrometer (TOMS) satellite instrument are featured in this collection. Data collection for this product is complete. The TRACE-A mission was a part o

NASA Earthdata CMR2023 · Array · NetCDF

This sea ice concentration data set was derived using measurements from the Scanning Multichannel Microwave Radiometer (SMMR) on the Nimbus-7 satellite and from the Special Sensor Microwave/Imager (SSM/I) sensors on the Defense Meteorological Satellite Program's (DMSP) -F8, -F11, and -F13 satellites. Measurements from the Special Sensor Microwave Imager/Sounder (SSMIS) aboard DMSP-F17 are also inc

NASA Earthdata CMR2023 · collection

This dataset contains the CryoClim Daily Snow Cover Fraction (snow on ground) product, produced by the Snow project of the ESA Climate Change Initiative programme.Fractional snow cover (FSC) on the ground indicates the area of snow observed from space on land surfaces, in forested areas compensated for the effect of trees hiding the ground surface snow cover under the forest canopy. The FSC is giv

NASA Earthdata CMR + NASA Data Portal2022 · Image data

This data set includes yearly snow melt onset dates over Arctic sea ice derived from Scanning Multichannel Microwave Radiometer (SMMR), Special Sensor Microwave/Imager (SSM/I), and the Special Sensor Microwave Imager/Sounder (SSMIS) brightness temperature measurements. The data are gridded to the 25 km Northern Hemisphere Polar Stereographic projection and available from 1979 through 2025. This da

NASA Earthdata CMR2022 · Image data

This data set is generated from brightness temperature data and is designed to provide a consistent time series of sea ice concentrations spanning the coverage of several passive microwave instruments.The data are provided in the polar stereographic projection at a grid cell size of 25 x 25 km. Data coverage is from 26 October 1978 to 31 December 2025.