This study has provided a landscape level estimate of leaf area index (LAI) and net primary productivity (NPP) for a temperate broadleaf forest ecosystem in south-central Indiana. The estimates were compared with the Moderate Resolution Imaging Spectroradiometer (MODIS) biophysical products LAI and NPP from both spatial and temporal perspectives. The evidence suggests that field-based estimates were poorly correlated with global MODIS data due to the simplifying assumptions of the MODIS global applicability, saturation problems of the red reflectance in highly vegetated areas, homogeneous land cover types of the study area, and other design assumptions of the field-based estimates. To improve the localized applicability of MODIS product algorithms, an empirical and localized algorithm combining in-situ measurements, the buildup of a localized biophysical model, and remote sensing-derived data were suggested for each local-scaled ecosystem. / Department of Natural Resources and Environmental Management
| Identifer | oai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:handle/187738 |
| Date | January 2004 |
| Creators | Chiang, Yang-Sheng |
| Contributors | Pichtel, John, 1957- |
| Source Sets | Ball State University |
| Detected Language | English |
| Format | xiii, 114 leaves : ill. (some col.), maps ; 28 cm. |
| Source | Virtual Press |
Page generated in 0.0021 seconds