HR: 0800h
AN: IN31A-0077    [Abstracts]
TI: Reuse of the NASA LP DAAC MODIS Reprojection Tool (MRT) and the USGS Global Visualization Viewer (GloVis) for the Development of the LP DAAC Web-Based MODIS Reprojection Tool (MRTWeb)
AU: * Sohre, T
EM: tsohre@usgs.gov
AF: U.S. Geological Survey, Center for Earth Resources Observation and Science (EROS) 47914 252nd Street, Sioux Falls, SD 57198-0001, United States
AU: Sauer, B
EM: bsauer@usgs.gov
AF: SAIC, Center for Earth Resources Observation and Science (EROS) 47914 252nd Street, Sioux Falls, SD 57198-0001,
AU: Maiersperger, T
EM: tmaiersperger@usgs
AF: SAIC, Center for Earth Resources Observation and Science (EROS) 47914 252nd Street, Sioux Falls, SD 57198-0001,
AU: Macie, M
EM: Medora.B.Macie@nasa.gov
AF: NASA, ESDIS Science Operations Office GSFC Code 423, Greenbelt, MD 20771, United States
AU: Miller, W
EM: wamiller@usgs.gov
AF: U.S. Geological Survey, Center for Earth Resources Observation and Science (EROS) 47914 252nd Street, Sioux Falls, SD 57198-0001, United States
AB: The Land Processes Distributed Active Archive Center (LP DAAC) was established as part of NASA's Earth Observing System (EOS) Data and Information System (EOSDIS) initiative to process, archive, and distribute land-related data collected by EOS sensors, thereby promoting the inter-disciplinary study and understanding of the integrated Earth system. The role of the LP DAAC includes the higher-level processing and distribution of ASTER data, and the distribution of MODIS land products derived from data acquired by the Terra and Aqua satellites. The LP DAAC anticipated that the community of land data users would need special software tools for handling the Level-3 MODIS land data products that would be distributed in HDF-EOS format and in the ISIN projection. The development of the MODIS Reprojection Tool (MRT) enabled users to read data files in HDF-EOS format (MODIS Level-2G, Level-3, and Level-4 land data products), specify a geographic subset or specific science data sets as input to processing, perform geographic transformation to a different coordinate system/cartographic projection, write the output to file formats other than HDF-EOS. Additional information regarding the MRT including links to download the software can be found at: http://lpdaac.usgs.gov/landdaac/tools/modis/index.asp. The LP DAAC has utilized the USGS Global Visualization Viewer (GloVis) as one method of data search and order. GloVis is a quick and easy online search and order tool for selected satellite data. The viewer allows user- friendly access to all available browse images from a number of Landsat data collections as well as ASTER, MODIS, and EO-1 data. Through a graphic map display, the user can select any area of interest and quickly view all available browse images within the USGS inventory for the specified location. GloVis can be run online at http://glovis.usgs.gov/ and the source code and be downloaded from: https://glovis.usgs.gov/distribution/. The LP DAAC saw an opportunity to reuse technologies from MRT and Glovis to develop a web-based tool that allows users to rapidly visualize tile-based MODIS data within a map context, navigate through time and space, select tiles of interest for processing, and then mosaic, subset, reproject, and select a data output format. This tool was developed utilizing a rapid development methodology that reused two existing technologies (MRT and GloVis). This paper will concentrate on the modification of reusable assets (specifically, MRT and GloVis) for reuse in a new system (MRTWeb). Lessons learned through this reuse experience will be highlighted.
DE: 0530 Data presentation and visualization
DE: 0540 Image processing
DE: 0599 General or miscellaneous
SC: Earth and Space Science Informatics [IN]
MN: 2007 Fall Meeting