Terrestrial Information Systems (619) Presentations Archive

Search Filter


 

Showing 1 to 3 of 3.

Results Page: 1
MODIS Land Product Quality Assessment Thumbnail

MODIS Land Product Quality Assessment [03/01/2011]

03.04.2011
This presentation describes methods employed by the Land Data Operational Product Evaluation (LDOPE) team to assess the quality of MODIS standard science products produced by the MODIS Adaptive Processing System (MODAPS). The methods include examining full resolution browse images and long-term trends of Level 3 ( gridded) products over ten 10 degree x 10 degree tiles situated over regions of the globe that cover representative land cover types and ecosystems. Additional topics in the talk include: the difference between quality assessment and validation of MODIS products; the process of how known issues in product quality are communicated and corrected; the role of the LDOPE team in assessing changes to algorithms before they are approved for use in the production system; and MODIS quality assessment tools developed by LDOPE and made available to the community.

Presentation by: Dr. Sadashiva Devadiga
Download MODIS Land Product QA.ppt
Managing processing and storage for MODIS and OMI thumbnail

Managing processing and storage for MODIS and OMI [02/08/2011]

03.01.2011
MODIS and OMI data systems support a number of services: integration of science algorithms; Level 1 and Level 2 product development; science data production, reprocessing and quality assessment; and data archive and distribution. These systems are designed to meet varying demand for processing/distribution by shifting computing resources between clusters. Open source tools for monitoring performance and resources, provisioning accounts and rapidly updating software on over 1,000 servers simplify the task of maintaining and enhancing these systems.

Presentation by: Mr. Ed Masuoka
Download Managing systems and storage for MODIS and OMI.ppt
photo of bee and flower

How is Climate Change Affecting Pollination? [05/04/2010]

05.04.2010
Nectar Flow dates and quality are changing due to climate & land cover/land use changes. This affects our bees. We are developing a network using 'scale hives' and satellite vegetation data, to begin to study impacts of climate change on plant-pollinator interaction phenology, and honey bee health.

Presentation by: Dr. Wayne Esaias
Download Esaias4May2010.ppt
Results Page: 1
                                                                                                                                                                                        
NASA Logo, National Aeronautics and Space Administration