MODIS/Aqua Calibrated Radiances 1km 5-Min 1B Wide Swath Subset along CloudSat V002 (MAC021S1) 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, MAC021S1 cross-track width is 201 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 41 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 MAC021S1).

Data and Resources

Additional Info

Field Value
Maintainer ANDREY SAVTCHENKO
Last Updated February 19, 2025, 04:14 (UTC)
Created February 19, 2025, 04:14 (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. MAC021S1. Version 002. MODIS/Aqua Calibrated Radiances 1km 5-Min 1B Wide Swath Subset along CloudSat. Greenbelt, MD, USA. MAC021S1. 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/MAC021S1_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/MAC021S1_002.png
harvest_object_id 590bfd98-73d0-46c0-a93f-cad4b1b3bfa7
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1236350878-GES_DISC
issue-identification MAC021S1
issued 2006-06-02
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1236350878-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 MAC021S1
source_datajson_identifier true
source_hash 79e1ee78ee8a4ce90c2b0686dd1d0286add87a861ba993480b62f60ef05195a3
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}