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Visible and infrared imagery from DMSP satellites Operational Linescan System (OLS) instruments

Metadata from the NOAA Metadata Manager's Repository (NMMR)


Identification_Information:
Citation:
Citation_Information:
Originator:National Geophysical Data Center (comp)
Publication_Date:2004
Title:
Visible and infrared imagery from DMSP satellites Operational Linescan System (OLS) instruments
Geospatial_Data_Presentation_Form:remote-sensing image
Publication_Information:
Publication_Place:Boulder, CO
Publisher:National Geophysical Data Center
Online_Linkage:http://sabr.ngdc.noaa.gov
Description:
Abstract:
Visible and infrared (IR) imagery from the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) instruments are used to monitor the global distribution of clouds and cloud top temperatures twice each day during day time and night time. The archive data set consists of low resolution, global coverage, and high resolution, regional coverage, imagery recorded along a 3,000 km scan, satellite ephemeris and solar and lunar data. IR pixel values vary from 190 to 310 Kelvins in 256 equally spaced steps. Onboard calibration is performed during each scan. Visible pixels are currently relative values ranging from 0 to 63 rather than absolute values in Watts per square meter. Instrumental gain levels are adjusted to maintain constant cloud reference values under varying conditions of solar and lunar illumination. Telescope pixel values are replaced by Photo Multiplier Tube (PMT) values at night. A telescope pixel is 0.55 km at high resolution and 2.7 km at low resolution. Low resolution values are the mean of the appropriate 25 high resolution values. A PMT pixel is 2.7 km at nadir. The OLS instrument consists of two telescopes and a photo multiplier tube. The visible telescope is sensitive to radiation from 0.40 - 1.10 micron (0.58 - 0.91 micron FWHM) and 10(-3) - 10 (-5) Watts per m(2) per steradian. The infrared telescope is sensitive to radiation from 10.0 - 13.4 micron (10.3 - 12.9 micron FWHM) and 190 to 310 Kelvins. The PMT is sensitive to radiation from 0.47 - 0.95 micron (0.51 - 0.86 micron FWHM) at 10(-5) - 10(-9) Watts per m(2) per steradian. The detectors sweep back and forth in a "whisk broom" or pendulum-type motion. The continuous analog signal is sampled at a constant rate so the Earth-located centers of each pixel are roughly equidistant, i.e., 0.5 km apart. 7,325 pixels are digitized across the 108 deg swath from limb to limb. The instruments are built by Westinghouse Corporation. DMSP satellites are in a sun-synchronous, low altitude polar orbit. Current equatorial crossing times are 0536 and 1052 local time. The orbital period is 101 minutes and the nominal altitude is 830 km. DMSP data are downlinked to Thule AFB and transmitted to Air Force Weather Agency (AFWA) via communications satellite. At AFWA, the data are decrypted and sent to NGDC via T1 (Note: March 1992 - November 1996 data were sent on 8mm tape). The incoming data are inventoried and copied to tape. Currently, NGDC receives and processes approximately 8.5 Gb of data per day from 4 satellites. Recent results obtained at NOAA-NGDC with the digital DMSP-OLS data (Elvidge et al., 1996 and 1997) suggest that nightly broad area inventories of fires and power outages could be readily produced. Algorithms have been developed to identify and geolocate visible-near infrared emission sources in nighttime OLS imagery. This paper describes the procedures which have been developed for detection of ephemeral events (fires and power outages) in DMSP-OLS data. The method relies on identifying a reference set of stable lights (cities, towns, villages, gas flares) database using a time series of OLS observations. Once the stable lights data set has been derived, it is possible to overlay the lights from an individual orbit to detect new visible-near infrared emission sources (e.g. fires) or locations where visible-near infrared emission was expected, but not observed (power outages). http://dmsp.ngdc.noaa.gov/html/download_Night_time_lights_94-95.html The DMSP sample imagery and other data and documentation can be found on the DMSP Home Page at http://dmsp.ngdc.noaa.gov/dmsp.html DMSP imagery can also be found at the Space Physics Interactive Data resource (SPIDR) at http://spidr.ngdc.noaa.gov/spidr/index.html
Purpose:
Provide information for research and surveyors
Supplemental_Information:
Formally FE 17, 119, 626. Entry_ID G01152
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date:19920601
Ending_Date:Present
Currentness_Reference:
Publication Date
Status:
Progress:In Work
Maintenance_and_Update_Frequency:Daily
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-180.000000
East_Bounding_Coordinate:180.000000
North_Bounding_Coordinate:90.000000
South_Bounding_Coordinate:-90.000000
Keywords:
Theme:
Theme_Keyword_Thesaurus:GCMD Earth Science Services Keywords
Theme_Keyword:EARTH SCIENCE SERVICES > Data Analysis And Visualization > Visualization/Image Processing
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Archiving
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Cataloging
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Compression
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Delivery
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Interoperability > Data Reformatting
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Interoperability
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Mining
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Data Search And Retrieval
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Media Transfer/Data Rescue
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Subsetting/Supersetting
Theme_Keyword:EARTH SCIENCE SERVICES > Data Handling > Transformation/Conversion
Theme_Keyword:EARTH SCIENCE SERVICES > Metadata Handling > Data Discovery
Theme_Keyword:EARTH SCIENCE SERVICES > Metadata Handling > Metadata Transformation/Conversion
Theme_Keyword:EARTH SCIENCE SERVICES > Metadata Handling > Service Discovery
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Fire Advisories
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Weather/Climate Advisories > Weather Forecast
Theme_Keyword:EARTH SCIENCE SERVICES > Environmental Advisories > Weather/Climate Advisories
Theme:
Theme_Keyword_Thesaurus:GCMD Science Keywords
Theme_Keyword:EARTH SCIENCE > Radiance Or Imagery > Visible Wavelengths > Visible Imagery
Theme_Keyword:EARTH SCIENCE > Radiance Or Imagery > Infrared Wavelengths > Infrared Imagery
Theme_Keyword:EARTH SCIENCE > Radiance Or Imagery > Platform Characteristics > Orbital Characteristics
Theme_Keyword:EARTH SCIENCE > Atmosphere > Atmospheric Phenomena > Hurricanes
Theme_Keyword:EARTH SCIENCE > Human Dimensions > Environmental Impacts > Gas Flaring
Theme_Keyword:EARTH SCIENCE > Human Dimensions > Environmental Impacts > Biomass Burning
Theme_Keyword:EARTH SCIENCE > Human Dimensions > Natural Hazards > Fires
Theme_Keyword:EARTH SCIENCE > Human Dimensions > Infrastructure > Cultural Features
Theme_Keyword:EARTH SCIENCE > Biosphere > Ecological Dynamics > Fire Occurrence
Theme_Keyword:EARTH SCIENCE > Radiance Or Imagery > Visible Wavelengths > Visible Imagery
Theme_Keyword:EARTH SCIENCE > Radiance Or Imagery > Infrared Wavelengths > Infrared Imagery
Theme_Keyword:EARTH SCIENCE > Radiance Or Imagery > Platform Characteristics > Orbital Characteristics
Theme_Keyword:EARTH SCIENCE > Atmosphere > Atmospheric Phenomena > Hurricanes
Theme_Keyword:EARTH SCIENCE > Atmosphere > Clouds > Cloud Top Temperature
Theme:
Theme_Keyword_Thesaurus:GCMD Platform Keywords
Theme_Keyword:DMSP > Defense Meteorological Satellite Programnal Environmental Satellites
Theme_Keyword:DMSP 5D-2/F10 > Defense Meteorological Satellite Program-F10
Theme_Keyword:DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11
Theme_Keyword:DMSP 5D-2/F12 > Defense Meteorological Satellite Program-F12
Theme_Keyword:DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
Theme_Keyword:DMSP 5D-2/F14 > Defense Meteorological Satellite Program-F14
Theme_Keyword:DMSP 5D-2/F15 > Defense Meteorological Satellite Program-F15
Theme:
Theme_Keyword_Thesaurus:GCMD Instrument Keywords
Theme_Keyword:OLS > Operational Linescan System
Theme:
Theme_Keyword_Thesaurus:Uncontrolled Keywords
Theme_Keyword:Night-time lights
Theme_Keyword:Aurora
Theme_Keyword:Polar orbiters
Theme_Keyword:DMSP/OLS
Theme_Keyword:Meteorological satellites
Theme_Keyword:Human settlements
Theme_Keyword:Fires
Theme_Keyword:Wildfires
Theme_Keyword:Gas flares
Theme_Keyword:Fishing boats
Theme_Keyword:Night-time lights
Theme_Keyword:Aurora
Theme_Keyword:Polar orbiters
Theme_Keyword:DMSP/OLS
Place:
Place_Keyword_Thesaurus:GCMD Location Keywords
Place_Keyword:Global
Access_Constraints:No Constraints
Use_Constraints:
None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact_Person:Edward H. Erwin
Contact_Address:
Address_Type:Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:Boulder
State_or_Province:CO
Postal_Code:80305-3328
Country:USA
Contact_Voice_Telephone:(303) 497-6133
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:Edward.H.Erwin@noaa.gov
Hours_of_Service:7:30 - 5:00 Mountain
Contact Instructions:
Contact Data Center
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Data_Quality_Information:
Logical_Consistency_Report:
Completeness_Report:
Lineage:
Process_Step:
Process_Description:
Process_Date:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact_Person:Eric A. Kihn
Contact_Address:
Address_Type:Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:Boulder
State_or_Province:CO
Postal_Code:80305-3328
Country:USA
Contact_Voice_Telephone:(303) 497-6349
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:Eric.A.Kihn@noaa.gov
Hours_of_Service:7:30 - 5:00 Mountain
Contact Instructions:
Contact Data Center
Resource_Description:GEOMAGNETICS
Distribution_Liability:
While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name:GeoTIFF image
File_Decompression_Technique:None
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:http://spidr.ngdc.noaa.gov
Network_Resource_Name:http://sabr.ngdc.noaa.gov
Fees:Free of charge
Custom_Order_Process:
Contact Data Center
Technical_Prerequisites:
Contact Data Center
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Metadata_Reference_Information:
Metadata_Date:20040610
Metadata_Review_Date:20040610
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Contact_Person:Eric A. Kihn
Contact_Address:
Address_Type:Mailing and Physical Address
Address:
NOAA/NESDIS/NGDC E/GC1 325 Broadway
City:Boulder
State_or_Province:CO
Postal_Code:80305-3328
Country:USA
Contact_Voice_Telephone:(303) 497-6349
Contact_Facsimile_Telephone:(303) 497-6513
Contact_Electronic_Mail_Address:EricA.Kihn@noaa.gov
Hours_of_Service:7:30 - 5:00 Mountain
Contact Instructions:
Contact Data Center
Metadata_Standard_Name:Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
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Metadata stylesheets are provided courtesy of ESRI. Copyright (c) 2000-2002, Environmental Systems Research Institute, Inc. All rights reserved.

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Publication date:16-02-2007 12:55:43
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