MODIS/Aqua Calibrated Radiances 250m 5-Min L1B Narrow Swath Subset along CloudSat V002 (MAC02QS0) 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, MAC02QS0 cross-track width is 44 pixels for radiances. Geolocations, however, are 1-km at best, and thus the cross-track width for geolocations is 11 pixels. Along-track, all MODIS pixels from the original product are preserved.

In the standard product, the 250 meter MODIS Level 1B data set contains calibrated and geolocated at-aperture radiances for 2 discrete bands located in the 0.62 to 0.88 micron region of the electromagnetic 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 these solar reflective bands 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.

Channel locations for the MODIS 250 meter data are as follows:
Band Center Wavelength (um) Primary Use

1 0.620 - 0.670 Land/Cloud Boundaries
2 0.841 - 0.876 Land/Cloud Boundaries

(The shortname for this product is MAC02QS0).

Data and Resources

Additional Info

Field Value
Maintainer ANDREY SAVTCHENKO
Last Updated March 31, 2025, 12:35 (UTC)
Created March 31, 2025, 12:35 (UTC)
accessLevel public
bureauCode {026:00}
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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. MAC02QS0. Version 002. MODIS/Aqua Calibrated Radiances 250m 5-Min L1B Narrow Swath Subset along CloudSat. Greenbelt, MD, USA. MAC02QS0. 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/MAC02QS0_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/MAC02QS0_002.png
harvest_object_id 7805059b-af66-43d7-a1b2-5550f09771c1
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C1236350900-GES_DISC
issue-identification MAC02QS0
issued 2006-06-02
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1236350900-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 MAC02QS0
source_datajson_identifier true
source_hash 5b9ceef4312490bf525b8e20df0becb54a9386ac6e9b9990dff607214003be75
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}