Spectral measurements were taken at each meter of the NIMS grid in Atqasuk, Alaska during the summer of 2011. The instrumentation used was a Unispec DC spectrometer with fiber optics, and the calculated footprint cover is about 50-60 cm. The dataset was collected by SCIOPS and last updated in August 2011.
Use Cases
- Modeling surface reflectance properties based on spectral measurements taken at meter intervals.
- Analyzing vegetation or ground cover changes in Arctic tundra based on data collected near ITEX dry sites.
- Calibrating remote sensing instruments using the described 20º sensor angle and reference scans from a 100% reflective surface.
Strengths
- Measurements were taken at each meter of a defined grid, suggesting systematic spatial coverage.
- Instrumentation and methodology are described, including a Unispec DC spectrometer and a calculated footprint of 50-60 cm.
- Extra reference scans were taken on a 100% reflective white board surface, which can aid in data calibration.
Limitations
- Last updated 2011-08-11 23:59:59.999000; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- SCIOPS
- Collection Method
- Spectral measurements taken with a Unispec DC spectrometer on a tripod, aimed at plots from the edge of white boards placed at each meter.
- Time Range
- Summer of 2011
- Geography
- Atqasuk, Alaska, specifically the NIMS grid situated about 50 meters south of ITEX dry sites.