The Headwall Hyperspectral Reflectance data are for the Long-Term Ecological Research (LTER) at Cedar Creek Ecosystem Science Reserve (CCESR), Minnesota (HWHYPCCMN1MM). The reflectance products are at 1 millimeter (mm) spatial resolution in the 400 to 1,000 nanometer spectral range. This dataset can be used to understand the optical diversity-biodiversity relationship and investigate the spatial sensitivity of the relationship at local scales.
A Headwall Series E imaging spectrometer was mounted on a tram system to collect designated plots for the biodiversity (BioDIV) experiment at the LTER Cedar Creek site. The imaging spectrometer, located 3 meters above the ground surface, obtained 1 mm ground pixel size of hyperspectral field image cubes that are among the finest spatial resolution available. The fine-scale images were acquired at a prairie grassland ecosystem during June/July 2014 and July 2015.
Provided in the HWHYPCCMN1MM product are 920 to 924 hyperspectral bands in an Environment for Visualizing Images (ENVI) format.
|File Size||~5 GB|
|Temporal Extent||2014-06-01 to 2015-07-31|
|Spatial Extent||Cedar Creek, MN|
|Geographic Dimensions||1000 mm x 1600 mm|
|Number of Science Dataset (SDS) Layers||1|
|Columns/Rows||1000 x 1600|
|Pixel Size||1 mm|
|SDS Name||Description||Units||Data Type||Fill Value||No Data Value||Valid Range||Scale Factor||Additional Offset|
|Band 1-924¹||Canopy reflectance||N/A||32-bit floating point||N/A||N/A||-10 to 100||N/A||N/A|
¹Each layer has the same characteristics. ¹920 layers are available for 2014 and 924 for 2015. (Change number of data layers in Granule table to 924 in drupal & add footnote.)
There are no uncertainty calculations associated with these data.
No known issues.