Boreas Rss-7 Lai, Gap Fraction, and Fpar Data

Boreas Rss-7 Lai, Gap Fraction, and Fpar Data
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 34
Release: 2018-05-29
Genre:
ISBN: 9781720408956
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The BOREAS RSS-7 team collected various data sets to develop and validate an algorithm to allow the retrieval of the spatial distribution of Leaf Area Index (LAI) from remotely sensed images. Ground measurements of LAI and Fraction of Photosynthetically Active Radiation (FPAR) absorbed by the plant canopy were made using the LAI-2000 and TRAC optical instruments during focused periods from 09-Aug-1993 to 19-Sep-1994. The measurements were intensive at the NSA and SSA tower sites, but were made just once or twice at auxiliary sites. The final processed LAI and FPAR data set is contained in tabular ASCII files. The data files are available on a CD-ROM (see document number 20010000884).Hall, Forrest G. (Editor) and Nickeson, Jaime (Editor) and Chen, JingGoddard Space Flight CenterALGORITHMS; SPATIAL DISTRIBUTION; LEAF AREA INDEX; REMOTE SENSING; IMAGERY; DATA ACQUISITION

Boreas Rss-7 Regional Lai and Fpar Images from 10-Day Avhrr-Lac Composites

Boreas Rss-7 Regional Lai and Fpar Images from 10-Day Avhrr-Lac Composites
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 28
Release: 2018-05-29
Genre:
ISBN: 9781720409069
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The BOReal Ecosystem-Atmosphere Study Remote Sensing Science (BOREAS RSS-7) team collected various data sets to develop and validate an algorithm to allow the retrieval of the spatial distribution of Leaf Area Index (LAI) from remotely sensed images. Advanced Very High Resolution Radiometer (AVHRR) level-4c 10-day composite Normalized Difference Vegetation Index (NDVI) images produced at CCRS were used to produce images of LAI and the Fraction of Photosynthetically Active Radiation (FPAR) absorbed by plant canopies for the three summer IFCs in 1994 across the BOREAS region. The algorithms were developed based on ground measurements and Landsat Thematic Mapper (TM) images. The data are stored in binary image format files.Hall, Forrest G. (Editor) and Nickeson, Jaime (Editor) and Chen, Jing and Cihlar, JosefGoddard Space Flight CenterADVANCED VERY HIGH RESOLUTION RADIOMETER; ECOSYSTEMS; LEAF AREA INDEX; REMOTE SENSING; SATELLITE IMAGERY; THEMATIC MAPPERS (LANDSAT); SPATIAL DISTRIBUTION; ALGORITHMS; DATA ACQUISITION; DATA PROCESSING; COMPUTER PROGRAMS

Boreas Rss-4 1994 Southern Study Area Jack Pine Lai and Fpar Data

Boreas Rss-4 1994 Southern Study Area Jack Pine Lai and Fpar Data
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Total Pages: 34
Release: 2018-05-29
Genre:
ISBN: 9781720408918
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The RSS-4 team collected several data sets related to leaf, plant, and stand physical, optical, and chemical properties. This data set contains leaf area indices and FPAR measurements that were taken at the three conifer sites in the BOREAS SSA during August 1993 and at the jack pine tower flux and a subset of auxiliary sites during July and August 1994. The measurements were made with LAI-2000 and Ceptometer instruments. The measurements were taken for the purpose of model parameterization and to test empirical relationships that were hypothesized between biophysical parameters and remotely sensed data. The data are stored in tabular ASCII files.Hall, Forrest G. (Editor) and Nickeson, Jaime (Editor) and Plummer, StephenGoddard Space Flight CenterECOSYSTEMS; ATMOSPHERIC MODELS; REMOTE SENSING; MEASURING INSTRUMENTS; OPTICAL PROPERTIES; PARAMETERIZATION; BIOPHYSICS; CONIFERS; DATA ACQUISITION