SHIFT: Reflectance Measurements for Dried and Ground Leaf Materials

Description

This dataset provides full-spectrum (350-2500 nm) reflectance measurements of dried ground leaf samples from meadow, shrub, and tree sites. Samples were collected during the period of February 23, 2022 to September 27th, 2022 for the 2022 NASA Surface Biology Geology (SBG) High Frequency Time series (SHIFT) campaign in Santa Barbara County, California, USA. The primary goal of the SHIFT campaign was to collect a repeated dense time series of airborne Visible to ShortWave Infrared (VSWIR) airborne imaging spectroscopy data with coincident field measurements in both inland terrestrial and coastal aquatic areas. Reflectance measurements were collected using a ASD FieldSpec 3 spectrometer following Serbin et al. (2014) and Wang et al. (2020). After sample collection, each leaf sample was divided into two portions: one portion with ~10 g fresh weight was oven dried and another portion with ~5 g fresh weight was flash frozen. Both samples were ground and homogenized (20-mesh, 833 micrometers). The oven dried samples were then re-dried in oven at 70 degrees C for 24 h and the flash frozen samples were dried using a Virtis Model 24DX48 specimen freeze dryer before the reflectance measurement. Data are in a comma-separated values (.csv) format.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F2244
33 SHIFT: Reflectance Measurements for Dried and Ground Leaf Materials: SHIFT_DriedGround_Leaf_Reflec.pdf https://data.ornldaac.earthdata.nasa.gov/public/shift/SHIFT_DriedGround_Leaf_Reflec/comp/SHIFT_DriedGround_Leaf_Reflec.pdf
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/shift/SHIFT_DriedGround_Leaf_Reflec/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/SHIFT/guides/SHIFT_DriedGround_Leaf_Reflec.html
34 a. Design specifications for the spectra tray. b. 3D printed tray. c. A tray filled with leaf material and ready to be re-dried. https://daac.ornl.gov/SHIFT/guides/SHIFT_DriedGround_Leaf_Reflec_Fig1.png
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/2244

Tags

  • infrared-wavelengths
  • biosphere
  • visible-wavelengths
  • spectral-engineering
  • vegetation
  • earth-science

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