Top banner for every page of EOSDIS data sampler number 2.

 

Information for Granule MOD04_L2.A2000242.0140.002.2000264223516.hdf on the EOSDIS Data Sampler #2

 

This granule contains the numerous MOD04 Scientific Data Sets (SDSs). Used for many scientific studies, the MODIS Troposphere Aerosol product contains measurements of the optical thickness of the atmosphere over land and of ocean and aerosol size distribution over the ocean. No geographical subsetting was performed, but data are masked for land (non-ocean) or ocean (non-land) conditions. The data are contained in many HDF SDSs within MOD04_L2.A2000242.0140.002.2000264223516.hdf, (See the Structural Metadata). These are arrays with rank = 2 and dimensions (203, 135) or with rank = 3 where the third dimension can range fom 2 to 7; 203 is the number of data elements in the "along-track" dimension, and 135 is the number of elements in the "across-track" dimension.

 

MODIS Optical Depth Land and Ocean (ODLO) image
Color-coded MODIS Optical Depth Land and Ocean (ODLO) image, centered east of Tokyo
(warm colors are aerosols, blue is clear air or thin cloud;
near-nadir data and thick clouds masked out).

136 KB 29 Aug. ODLO 10 km subset

 

Data Quality

The following statement is applicable to this granule.

CAUTION! This version of the product should be considered to be a research product.
See also the MODIS Level 1B Code and Product Information Web page for further information.

Data Product Quality

There is no known quality problem with this granule.

This information came from MOD04_L2.A2000242.0140.002.2000264223516.hdf

HDF-EOS Data File

File Attributes
Attribute Name Attribute Value (or Link)
HDFEOSVersion 
HDFEOS_V2.4
Structural Metadata SwathStructure
Number_of_Instrument_Scans 
203
Maximum_Number_of_1km_Frames 
1354
Title MODIS HDF File Specification MOD04_L2:
MODIS Level 2 Aerosol over Land and Ocean Product
Slope_and_Offset_Usage The local SDS scale_factor and add_offset attributes are used for the conversion of stored integer data to geophysical floating point numbers. The implementation follows conventional HDF usage (See HDF Users Guide): float value = scale_factor*(stored integer - add_offset) The unit of the derived floating point value is indicated in the 'units' local attribute which is also provided.
Core Metadata INVENTORYMETADATA
Archived Metadata ARCHIVEDMETADATA

 

HDF-EOS MOD04 Top-Level Data Groups

 

HDF-EOS MOD04 Swath Information

 

Disclaimer: NASA offers these suggested sites for additional information regarding MOD04. Web access is required to reach these sites. Link existence and contents are not under the control of the EOSDIS Science Operations Office.

 

MODIS Aerosols Web Sites

Top of Page