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High Resolution Global Contiguous SIF Estimates from OCO-2 SIF and MODIS, Version 2

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1863
Version2
Project
Published2021-08-13
Updated2021-08-13
Usage33 downloads

Description

This dataset provides spatially-contiguous global mean daily solar-induced chlorophyll fluorescence (SIF) estimates at 0.05 degree (approximately 5 km at the equator) spatial and 16-day temporal resolution from September 2014 through July 2020. This product was derived from Orbiting Carbon Observatory-2 (OCO-2) SIF observations and produced by training an artificial neural network (ANN) on the native OCO-2 SIF observations and MODIS BRDF-corrected seven-band surface reflectance along OCO-2's orbits. The trained ANN model was then applied to predict mean daily SIF (mW/m2/nm/sr) in OCO-2's gap regions based on MODIS reflectance and landcover. This framework was stratified by biomes and 16-day time steps. This dataset's high resolution and global contiguous coverage will greatly enhance the synergy between satellite SIF and photosynthesis measured on the ground at consistent spatial scales. Potential applications of this dataset include advancing dynamic drought monitoring and mitigation, informing agricultural planning and yield estimation, and providing a benchmark for upcoming satellite missions with SIF capabilities at higher spatial resolutions.

Science Keywords

  • BIOSPHERE
  • VEGETATION
  • LEAF CHARACTERISTICS
  • BIOSPHERE
  • VEGETATION
  • SOLAR INDUCED FLUORESCENCE
  • BIOSPHERE
  • ECOLOGICAL DYNAMICS
  • ECOSYSTEM FUNCTIONS
  • PRIMARY PRODUCTION
  • BIOSPHERE
  • VEGETATION
  • CHLOROPHYLL

Data Use and Citation

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Crosscite Citation Formatter
Yu, L., J. Wen, C.Y. Chang, C. Frankenberg, and Y. Sun. 2021. High Resolution Global Contiguous SIF Estimates from OCO-2 SIF and MODIS, Version 2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1863

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See our Data Use and Citation Policy for more information.

Data Files

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Companion Files

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Dataset has 1 companion files.

  • Global_SIF_OCO2_MODIS.pdf

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Version History

VersionDataset TitlePublished
1High Resolution Global Contiguous SIF Estimates Derived from OCO-2 SIF and MODIS2019-09-09
2High Resolution Global Contiguous SIF Estimates from OCO-2 SIF and MODIS, Version 22021-08-13