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    • SHIFT: Reflectance Measurements for Dried and Ground Leaf Materials

    Metadata Updated: April 22, 2024

    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.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date October 4, 2023
    Metadata Updated Date April 22, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    a. Design specifications for the spectra tray. b. 3D printed tray. c. A tray filled with leaf material and ready to be re-dried.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 4, 2023
    Metadata Updated Date April 22, 2024
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2773243181-ORNL_CLOUD
    Data First Published 2024-04-10
    Language en-US
    Data Last Modified 2024-04-11
    Category SHIFT, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Zheng, T., N. Queally, K.D. Chadwick, J. Cryer, P. Reim, P. Townsend, E. Marsh, M. Berg, Z. Breuer, N. Burkard, A. Hanson, E. Johnson, D. Lacey, A. Lee, L. Pfau, I. Shifrin, B. Skalitzky, S. Stroschein, J. Van beek, C. Vanden heuvel, and A. Williams. 2023. SHIFT: Reflectance Measurements for Dried and Ground Leaf Materials. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2244
    Graphic Preview Description a. Design specifications for the spectra tray. b. 3D printed tray. c. A tray filled with leaf material and ready to be re-dried.
    Graphic Preview File https://daac.ornl.gov/SHIFT/guides/SHIFT_DriedGround_Leaf_Reflec_Fig1.png
    Harvest Object Id 8d967c2c-7696-4e34-9d2e-cc87e5d36334
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2244
    Metadata Type geospatial
    Old Spatial -120.62 34.38 -119.53 34.89
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash ff98488dc3a67ccf0f7a38f4e4df59dcf69300ef2f1b39933812cb1a935d0153
    Source Schema Version 1.1
    Spatial
    Temporal 2022-02-23T00:00:00Z/2022-09-27T23:59:59Z

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