Access to near real time Access to near real time global visible and thermal global visible and thermal band mosaics from NGDC band mosaics from NGDC

Chris Elvidge and Edward H. Erwin, NOAA-NGDC (Chris Elvidge and Edward H. Erwin, NOAA-NGDC (chris.elvidge@noaa.govchris.elvidge@noaa.gov))

Kimberly E. Baugh, Ara T. Howard, Benjamin T. TuttleKimberly E. Baugh, Ara T. Howard, Benjamin T. Tuttle

University of Colorado Cooperative Institute for Research in University of Colorado Cooperative Institute for Research in the Environmental Sciences (CIRESthe Environmental Sciences (CIRES

January 24, 2007January 24, 2007

The U.S. Air ForceDefense Meteorological Satellite Program (DMSP)Operational Linescan System (OLS) has aUnique capability to collect low-light imagery.

Polar orbiting3000 km swath2.7 km ground sample

distance (GSD)Two spectral bands:

visible and thermalNightly global coverageFlown since 1972Will continue till ~2012

Visible

Thermal

NGDC’s NGDC’s Near Real Near Real

Time Time Processing Processing

and and Delivery Delivery

System for System for DMSP-OLS DMSP-OLS

DataData

Watch How the Global Mosaics Are Watch How the Global Mosaics Are Built – One Orbit at a Time!Built – One Orbit at a Time!

http://www.ngdc.noaa.gov/eog/nrt/http://www.ngdc.noaa.gov/eog/nrt/html/mosaic/ut_night/loop/html/mosaic/ut_night/loop/

Open Access to Six km Resolution Open Access to Six km Resolution Visible and Thermal Band Mosaics!Visible and Thermal Band Mosaics!

http://www.ngdc.noaa.gov/eog/maps/http://www.ngdc.noaa.gov/eog/maps/public/mosaic/ut_night/?SERVICE=wpublic/mosaic/ut_night/?SERVICE=wms&VERSION=1.1.1&REQUEST=Getms&VERSION=1.1.1&REQUEST=GetMap&LAYERS=F1620070121.nt.d.OISMap&LAYERS=F1620070121.nt.d.OIS.vis.mos.tif&FORMAT=png&&BBOX=.vis.mos.tif&FORMAT=png&&BBOX=110,0,130,20110,0,130,20

Edit the date, band, format (png or Edit the date, band, format (png or geotiff), and bounding rectangle. geotiff), and bounding rectangle.

Paste into web browser.Paste into web browser.

ConclusionConclusion Service ready for use and could augment other Service ready for use and could augment other

sources in tracking storms and evaluating their sources in tracking storms and evaluating their severity.severity.

Three hour hold on distribution of OLS data can be Three hour hold on distribution of OLS data can be waived through a request to the U.S. government.waived through a request to the U.S. government.

A graphical user interface is in development.A graphical user interface is in development. Access uses open source web mapping system Access uses open source web mapping system

and web coverage service components which can and web coverage service components which can be shared. be shared.

NGDC plans to develop a “most recent” thermal NGDC plans to develop a “most recent” thermal band mosaic that will include day-night and dawn-band mosaic that will include day-night and dawn-dusk data.dusk data.

NGDC plans to establish the same type of service NGDC plans to establish the same type of service for VIIRS data in 2010.for VIIRS data in 2010.