Scaling up LTER measurements to local and regional scales withremote sensing

Qi, J, S. South, and D. Skole

Presented at the Campus Symposium (2001-04-19 )

Research activities over the past ten years at the KBS LTER site have resulted in a high quality data set that is characteristic of agro-ecosystem at plot scale. To expand the findings at the plot scale to local and regional scales, however, remain to be further explored. Remote sensing provides indirect measurements of crop conditions at variable scales and, therefore, may provide a practical means to scale up the research findings at the LTER site to large scales both in space and time. To achieve this goal, we designed an experiment at the LTER site with a semi-permanent tower to continuously measure the radiometric properties of crops under various treatments using a sensor similar to the ETM+ sensor aboard the Landsat 7 satellite. The radiometric measurements at the tower will be used to develop a scaling scheme that link remote sensing images with crop conditions. The approach and some of the preliminary results will be presented in this poster. Challenges in scaling up local LTER findings to local and regional scales will be discussed.

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