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EDG Data Set Name MODIS/Terra Observation Pointers Daily L2G Global 500m ISIN Grid Granule Shortname MODPTHKM Data Set Characteristics Area = ~ 10° x 10° lat/long Image Dimensions = 1200 x 1200                                 rows/columns File Size = ~115 MB Resolution = 500m Projection = Integerized Sinusoidal Processing Level = 2G Data Format = HDF-EOS Science Data Sets (SDSs) = 9

Color Observation Coverage Red 0 to 10% Green 11 to 20% Blue 21 to 30% Yellow 31 to 40% Cyan 41 to 50% Magenta 51 to 60% Maroon 61 to 70% Purple 71 to 80% Sienna 81 to 90% Violet 91 to 100% Color Granule Pointers Red 0 Yellow 1 Green 2 Black 255

Product Description
The MODIS Level 2G (L2G) land data storage methodology was developed to satisfy the diverse needs of the MODIS land product generation algorithms, to enable efficient processing and reprocessing of MODIS land products, to facilitate the development of terrestrial remote sensing algorithms and science using MODIS land data, and to provide users with the original sensed MODIS observations and their sub-pixel geolocation information.

The L2G data storage structure stores information concerning the Level 2 (L2) observations that fall within each Level 3 (L3) grid cell over a 24 hour (GMT) period. The measured L2 geophysical parameter and the sensing geometry information are stored for each observation. The multiple observations stored in the L2G structure are examined by the L3 processes to extract only the most relevant observations falling over each grid cell.

SDS	Units	Data Type -bit	Fill Value	Valid Range	Scaling Factor	Calibrated _nt
# Observations	na	8-bit signed integer	-1	0,127	na	na
Observation Coverage	%	8-bit signed integer	-1	0,100	0.01	na
Delta Line Location	na	8-bit signed integer	0	-127,128	0.015625	5
Delta Sample Location	na	8-bit signed integer	0	-127,128	0.015625	5
Granule Pointer	na	8-bit unsigned integer	255	0,254	na	na
Observation Line #	na	32-bit unsigned integer	65535	0	na	na
Observation Sample #	na	32-bit signed integer	65535	0	na	na
Row & Column Offset in a Courser Grid	na	8-bit unsigned integer	136	0,255	na	na
Observation Number in Courser Grid	na	8-bit unsigned integer	255	0,254	na	na

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MODIS/TERRA OBSERVATION POINTERS DAILY L2G GLOBAL 500M ISIN GRID V003

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Data Center:	LPDAAC
Sensor:	MODIS
Dataset:	MODIS/Terra Observation Pointers Daily L2G Global 500m ISIN Grid
Geographic Extent:	Type Lat/Long Range or Draw on Map
Temporal Extent:	August 29, 2002 (2002241) - October 7, 2002 (2002280)ww

Product Information

Product Description - Not Available

User Guide - Not Available

Algorithm Theoretical Basis Document (ATBD) - See ATBD-MOD-28 MODIS Standard Data Products Catalog (http://modis.gsfc.nasa.gov/data/atbd/land_atbd.php)

MODIS Standard Data Products Catalog - No description available for MODPTQKM (http://modis.gsfc.nasa.gov/data/dataprod/index.php)

EOS Data Products Handbook Volume 1 (2000) (http://eospso.gsfc.nasa.gov/eos_homepage/for_scientists/data_products/vol1.php) - No description available for MODPTHKM

Contact Information

LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science Center (EROS) 47914 252nd Street Sioux Falls, SD 57198-0001
Phone:	605-594-6116
Toll Free:	866-573-3222
	866-LPE-DAAC
Fax:	605-594-6963
Email:	LPDAAC@eos.nasa.gov
Web:	http://LPDAAC.usgs.gov

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