MODIS/Terra Calibrated Radiances 5-Min L1B Swath 1km

Metadata Updated: August 9, 2018

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 the electromagnetic spectrum. These data are generated from the MODIS Level 1A scans of raw radiance which during processing are converted to geophysical units of W/(m^2 um sr). 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 (except band 26), while radiances for the thermal infrared region (bands 20-25, 27-36) are measured continuously.

The Shortname for this product is MOD021KM and is stored in the Earth Observing System Hierarchical Data Format (HDF-EOS). A typical file size would be approximately 110 MB (a day granule around 150MB and a night granule around 70 MB).

In this new version (Collection 6.1) of MOD021KM, an advanced technique is introduced to mitigate the crosstalk contamination issue among the LWIR PV bands
using data from lunar calibration events.

The electronic crosstalk contamination issue in the Terra long-wave infrared photovoltaic (LWIR PV) bands (27 -30), has existed since the beginning of the mission but become more noticeable during later half of the mission. The electronic crosstalk is where signal from each of the detectors among the LWIR PV bands can leak to the other detectors, producing a false signal contribution. This contamination has had a noticeable effect on the MODIS science products since 2010 for band 27, and since 2012 for bands 28 and 29.

Environmental information derived from MODIS L1B measurements will offer a comprehensive and unprecedented look at terrestrial, atmospheric, and ocean phenomenology for a wide and diverse community of users throughout the world.

See the MODIS Characterization Support Team webpage for more C6 product information at:

https://mcst.gsfc.nasa.gov/l1b/product-information

or visit Science Team homepage at: https://modis.gsfc.nasa.gov/data/dataprod/

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

References

https://mcst.gsfc.nasa.gov/content/l1b-documents
https://ladsweb.modaps.eosdis.nasa.gov/
https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/61/MOD021KM/
https://mcst.gsfc.nasa.gov/l1b/product-information

Dates

Metadata Created Date August 9, 2018
Metadata Updated Date August 9, 2018

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 9, 2018
Metadata Updated Date August 9, 2018
Publisher Not provided
Unique Identifier C1378227407-LAADS
Maintainer
ASAD ULLAH
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 51a4453b-5f63-4318-801b-5c9436726eaa
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2017-05-01T00:00:00.000Z
Language en-US
Metadata Type geospatial
Data Last Modified 2018-04-04T00:00:00Z
Program Code 026:001
Publisher Hierarchy U.S. Government > National Aeronautics and Space Administration > Not provided
Related Documents https://mcst.gsfc.nasa.gov/content/l1b-documents, https://ladsweb.modaps.eosdis.nasa.gov/, https://ladsweb.modaps.eosdis.nasa.gov/archive/allData/61/MOD021KM/, https://mcst.gsfc.nasa.gov/l1b/product-information
Source Datajson Identifier True
Source Hash 89dd41a91d6dcfeb68e33f73839c87cd603e4cbe
Source Schema Version 1.1
Spatial -180.0 -90.0 180.0 90.0
Temporal 2000-02-24T00:00:00Z/2018-04-04T00:00:00Z
Category TERRA, geospatial

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