The NASA Giovanni data analysis system, hosted by the Goddard Earth Science Data and Information Services Center (GES DISC), has added two new data portals in support of the Monsoon Asia Integrated Regional Study (MAIRS) project.
The two data portals, one for monthly data and one for annual (yearly) data, provide data products with higher spatial resolution. The MAIRS monthly high-resolution data portal provides Enhanced Vegetation Index (EVI) and Normalized Difference Vegetation Index (NDVI) data with 1 km spatial resolution for the MAIRS study region only. The annual data portal includes several different classification schemes of land cover types based on Moderate Resolution Imaging Spectroradiometer (MODIS) data. For the MAIRS study region, the land cover types are provided at 500 meter spatial resolution. Three classification schemes of land cover types are provided globally at 5.6 km spatial resolution.
The data in these new data portals supplement data that is currently available in the MAIRS data portals. In the 8-day temporal resolution data portal, one of the data products of particular interest is land surface temperature data at 1 kilometer spatial resolution. This data product was the subject of a poster presented at the 2010 Fall Meeting of the American Geophysical Union in December 2010. The poster was entitled "Estimation of Surface Air Temperature from MODIS 1km Resolution Land Surface Temperature over Northern China", authored by Suhung Shen, Gregory Leptoukh, and Irina Gerasimov.
(Online PDF copy of poster)
Link: Land cover types classification color palette for the accompanying image (PDF), or see Figure 1 below.
Figure 1. Top Panel: MODIS land cover types (International Geosphere Biosphere Programme (IGBP)) for 2009 at 5.6km resolution over the Monsoon Asian region. Lower panels: The MODIS IGBP land cover types of 500m resolution over northeast India (left) and Yangtze River Delta region, eastern China (right). [Click image to view larger]
Figure 2. 1km resolution Normalized Difference Vegetation Index (NDVI) of April 2010 over Yangtze River Delta region, eastern China, showing clearly the lower values of NDVI over urban areas and bodies of water. [Image shown full-size]