MODIS/Aqua Calibrated Radiances 1km 5-Min 1B Narrow Swath Subset along CloudSat V002 (MAC021S0) 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 about 10 km cross-track. Thus, MAC021S0 cross-track width is 11 pixels for radiances. Geolocations in the original product, however, are subsampled at 5-km, and thus the cross-track width of the subset geolocations is 3 pixels. Along-track, all MODIS pixels from the original product are preserved.

In the standard product, the MODIS Level 1B data set contains calibrated and geolocated at-aperture radiances for 36 discrete bands located in the 0.4 to 14.4 micron region of electromagentic spectrum. These data are generated from the MODIS Level 1A scans of raw radiance and in the process converted to geophysical units of W/(m^2 um sr). In addition, the Earth Bi-directional Reflectance Distribution Function (BRDF) may be determined for the solar reflective bands (1-19, 26) through knowledge of the solar irradiance (e.g., determined from MODIS solar diffuser data, and from the target illumination geometry). Additional data are provided including quality flags, error estimates and calibration data.

Visible, shortwave infrared, and near infrared measurements are only made during the daytime, while radiances for the thermal infrared region (bands 20-25, 27-36) are measured continuously.

(The shortname for this product is MAC021S0).

Data and Resources

Additional Info

Field Value
Maintainer ANDREY SAVTCHENKO
Last Updated March 31, 2025, 18:47 (UTC)
Created March 31, 2025, 18:47 (UTC)
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation MODIS Science Team. GES DISC. 2006-10-01. MAC021S0. Version 002. MODIS/Aqua Calibrated Radiances 1km 5-Min 1B Narrow Swath Subset along CloudSat. Greenbelt, MD, USA. MAC021S0. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://disc.gsfc.nasa.gov/datacollection/MAC021S0_002.html. Digital Science Data.
creator MODIS Science Team
data-presentation-form Digital Science Data
editor GES DISC
graphic-preview-file https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/MAC021S0_002.png
harvest_object_id ec9af075-33fb-420e-bc80-b096aef08925
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1236350891-GES_DISC
issue-identification MAC021S0
issued 2006-06-02
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1236350891-GES_DISC.html
language {en-US}
metadata_type geospatial
modified 2018-03-01
programCode {026:001}
publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
release-place Greenbelt, MD, USA
resource-type Dataset
series-name MAC021S0
source_datajson_identifier true
source_hash dc7f560ba0ba65933af4d60fd317902685804a1be7d8d4598d0a0fc158bbab73
source_schema_version 1.1
spatial -180.0 -90.0 180.0 90.0
temporal 2006-06-02T00:00:00Z/2018-03-01T23:59:59.999Z
theme {ATDD,geospatial}