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Record Search Query: [Keyword='IDL']

Bit Mapper: Extracting and Visualizing Bit Flags from Byte Data
 Entry ID: Bit_Mapper

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Summary
Abstract: This IDL program extracts bit flags from byte data arrays, and
then plots them on a geolocated map with a user-defined color
scheme. The specific codes are designed to extract MOD06 L2 QA
bit flags and Cloud Mask (MOD06 or MOD35) bit flags, but can be
modified to extract and visualize other bit flags. The program
is separated into two codes, one which performs the extraction
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Related URL
Link: GET SERVICE > GET SOFTWARE PACKAGE
Description: Users can download Bit Mapper from here.

Link: GET SERVICE > GET SOFTWARE PACKAGE
Description: Other MODIS tools are available here.
Multimedia Sample
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Caption Description:  Bit Mapper

Service Citation
Originators: Eric Moody
Title: Bit Mapper: Extracting and Visualizing Bit Flags from Byte Data
Release_Date: 2001-03-20
Provider: MODIS-Atmosphere, GSFC, NASA
Edition: 1.0
URL: http://modis-atmos.gsfc.nasa.gov/tools_bitmapper.html
Service Keywords
DATA ANALYSIS AND VISUALIZATION >VISUALIZATION/IMAGE PROCESSING Parameter Definition

Science Keywords
ATMOSPHERE >AEROSOLS Parameter Definition
ATMOSPHERE >AIR QUALITY Parameter Definition
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ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
ENVIRONMENT
Instrument
MODIS >Moderate-Resolution Imaging Spectroradiometer Ancillary Description
Use Constraints Language and Environment Requirements: IDL.

Limitations: The code was tested using IDL version 5.2, more
recent versions of IDL have not been tested and results can not
be guaranteed.

Installation Tips: Once the files are unzipped and untarred,
examine the README.txt and PACKINGLIST text files for more
details on installing and running the code.
Ancillary Keywords
IDL
MODIS
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Service Provider
NASA/GSFC/SED/ESD/LA/CRB/MST/MA > MODIS-Atmosphere, MODIS Science Team, Climate and Radiation Branch, Laboratory for Atmospheres, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA Supplemental Info
Service Organization URL: http://modis-atmos.gsfc.nasa.gov/

Service Provider Personnel
Name: DR. MICHAEL D. KING
Phone: 301-614-5636
Fax: 301-614-5620
Email: michael.d.king at nasa.gov
Contact Address:
NASA
Goddard Space Flight Center
Mailstop 610.0
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution Media
Distribution_Media: Electronic/Download
Fees: None
Personnel
TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
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Publications/References
Xia, Y., K. Mitchell, M. Ek, J. Sheffield, B. Cosgrove, E. Wood, L. Luo, C. Alonge, H. Wei, J. Meng, B. Livneh, D. Lettenmaier, V. Koren, Q. Duan, K. Mo, Y. Fan, and D. Mocko, (2012), Continental-scale water and energy flux analysis and validation for the North American Land Data Assimilation System project phase 2 (NLDAS-2): 1. Intercomparison and application of model products, J. Geophys. Res., 117, D03109, doi:10.1029/2011JD016048.

Koster, R., and M. Suarez (1994), The components of the SVAT scheme and their effects on a GCM's hydrological cycle, Adv. Water Resour., 17, 61-78, doi:10.1016/0309-1708(94)90024-8.

Koster, R., and M. Suarez (1996), Energy and water balance calculations in the Mosaic LSM, NASA Tech. Memo., NASA TM-104606, vol. 9, 60 pp.
Creation and Review Dates
SERF Creation Date:
SERF Last Revision Date: 2002-12-03
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