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Description

The MODIS/Aqua Aerosol Optical Thickness Daily L3 Global 0.05-Deg CMA Near Real Time (NRT), short name MYD09CMA, is a daily level 3 global product. It is in linear latitude and longitude (Plate Carre) projection with a 0.05Deg spatial resolution. This product is derived from MYD09IDN, MYD09IDT and MYD09IDS for each orbit by compositing the data on the basis of minimum band 3 (459 - 479 nm band) values (after excluding pixels flagged for clouds and high solar zenith angles).

Product Summary

Platforms
Aqua
Instruments
MODIS
Spatial Extent

N: 81 S: -81 E: 180 W: -180

Spatial Resolution
0.05 Decimal Degrees x 0.05 Decimal Degrees
Geographic Region
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2021-02-07
Data Partner
Land, Atmosphere Near real-time Capability for EOS (LANCE) Moderate Resolution Imaging Spectroradiometer (MODIS) (NASA/GSFC/EOS/ESDIS/LANCE MODIS)
Concept ID
C2007652084-LANCEMODIS
Data State
ACTIVE
Processing Level
3
Published
Science Keywords
Aerosol Optical Depth/Thickness

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

MODIS Science Team. (2021). MODIS/Aqua Aerosol Optical Thickness Daily L3 Global 0.05-Deg CMA NRT [Data set]. NASA LANCE MODIS at the MODAPS. https://doi.org/10.5067/MODIS/MYD09CMA.NRT.061 Date Accessed: 2025-12-15

File Naming Convention

ESDT.AYYYYDDD.CCC.NRT.hdf


ESDT Earth Science Data Type or Shortname
A Stands for Acquisition
YYYYDDD Data acquisition year and Day-of-year
HHMM Acquisition Hour and Minute
CCC Version ID of the data collection
YYYYDDDHHMMSS Processing year, Day-of-year, UTC time (hour, minutes, seconds)
Format File format suffix, which in the above case represents hdf