MODIS/Aqua Calibrated Radiances 250m 5-Min L1B Wide Swath Subset along CloudSat V002 (MAC02QS1) 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, MAC02QS1 cross-track width is 804 pixels for radiances. Geolocations, however, are 1-km at best, and thus the cross-track width for geolocations is 201 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 MAC02QS1).

Data and Resources

Additional Info

Field Value
Maintainer ANDREY SAVTCHENKO
Last Updated February 19, 2025, 02:01 (UTC)
Created February 19, 2025, 02:01 (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. MAC02QS1. Version 002. MODIS/Aqua Calibrated Radiances 250m 5-Min L1B Wide Swath Subset along CloudSat. Greenbelt, MD, USA. MAC02QS1. 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/MAC02QS1_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/MAC02QS1_002.png
harvest_object_id 8a179c7f-ed60-4010-89a8-54b96f2cf97a
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C1236350921-GES_DISC
issue-identification MAC02QS1
issued 2006-06-02
landingPage https://cmr.earthdata.nasa.gov:443/search/concepts/C1236350921-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 MAC02QS1
source_datajson_identifier true
source_hash 432783fc4bed0fccfbd4d6531f415067079b4838df41057036fa361d47708652
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}