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TitleSeasonal AVHRR multichannel data sets and products for studies of surface-atmosphere interactions
AuthorCihlar, J; Chen, JORCID logo; Li, Z
SourceBOREAS special issue; Journal of Geophysical Research vol. 102, no. D24, 1997 p. 29,625-29,640,
Alt SeriesEarth Sciences Sector, Contribution Series 20041520
Mediapaper; on-line; digital
File formatpdf
Subjectsvegetation; vegetation history; satellites; satellite imagery; landscape types; biomes
Illustrationsequations; Landsat images; graphs; satellite images
ProgramBoreal Ecosystem-Atmosphere Study (BOREAS)
Released1997 12 01
AbstractA basic methodological premise in the design of the Boreal Ecosystem-Atmosphere Study (BOREAS) is that the findings and models obtained at the stand level can be applied at the landscape, regional, and global levels by using spatially comprehensive data sets, in particular satellite observations and meteorological measurements. Since many of the processes of interest are strongly influenced by solar radiation, satellite measurements at optical wavelengths are of fundamental importance. We describe a satellite data set and derived products prepared for the studies of the ecosystem-atmosphere interactions, including the scaling up of site and landscape measurements, model development and validation, and many other applications. It is derived from daily measurements by the advanced very high resolution radiometer (AVHRR) onboard the NOAA 11 satellite. The data set was obtained through a compositing process to minimize the contamination by clouds. Subsequently, the ABC3 procedure [Cihlar et al., 1997] was applied to remove atmospheric attenuation effects, identify residual clouds or snow-covered pixels and remove the effect of this contamination, remove bidirectional reflectance effects, and correct for surface emissivity effects. This paper briefly reviews the correction procedures, discusses the characteristics of the corrected data set, and presents several derived products of biophysical parameters, including leaf area index and the fraction of photosynthetically active radiation, vegetation index accumulated over the growing season, and the daily total absorbed photosynthetically active radiation.

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