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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.

Product Summary

Platforms
Terra ,
Aqua ,
MODELS ,
OCO-2
Instruments
MODIS ,
Computer ,
SPECTROMETERS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2014-09-01 to 2020-07-31
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2207986708-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
138
Processing Level
3
Published
Updated
Science Keywords
Solar Induced Fluorescence ,
Chlorophyll ,
Primary Production ,
Leaf Characteristics

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Yu, L., Wen, J., Chang, C. Y., Frankenberg, C., & Sun, Y. (2021). High Resolution Global Contiguous SIF Estimates from OCO-2 SIF and MODIS, Version 2 (Version 2). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1863 Date Accessed: 2026-04-29

Documents

Filters
Title Year Author Topic
Amazon forest nutrient limitation is mitigated by distant fire emissions Descals, Adria, Janssens, Ivan A., Penuelas, Josep Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics, Reflectance, Fire Ecology, Biomass Burning, Wildfires, Fire Occurrence, Burned Area, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar)
Temporally extending long-term forest productivity dynamics using Cen, Yi, Hou, Lu, Gao, Xiaojie, Liu, Kai, Li, Yao, Shen, Yu, Yang, Yingpin, Wang, Zongbin, Wang, Jinnian Plant Phenology, Enhanced Vegetation Index (EVI), Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics
Detection of fast-changing intra-seasonal vegetation dynamics of drylands using solar-induced chlorophyll fluorescence (SIF) Wen, Jiaming, Tagliabue, Giulia, Rossini, Micol, Fava, Francesco Pietro, Panigada, Cinzia, Merbold, Lutz, Leitner, Sonja, Sun, Ying Longwave Radiation, Shortwave Radiation, Heat Flux, Liquid Precipitation, Snow/Ice, Geopotential Height, Altitude, Surface Temperature, Skin Temperature, Upper Air Temperature, Dew Point Temperature, Air Temperature, Cloud Top Temperature, Atmospheric Winds, Surface Winds, U/V Wind Components, Upper Level Winds, U/V Wind Components, Vertical Wind Velocity/Speed, Atmospheric Pressure, Sea Level Pressure, Cloud Top Pressure, Sea Level Pressure, Surface Pressure, Specific Humidity, Total Precipitable Water, Cloud Liquid Water/Ice, Atmospheric Water Vapor, Atmospheric Ozone, Oxygen Compounds, Boundary Layer Winds, Total Ozone, Reflectance, Anisotropy, Land Use/Land Cover Classification, Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics, Potential Vorticity, Vertical Profiles, Relative Humidity, Ozone Profiles
Forecasting of Fine-Grained SIF of OCO-2 Using Multi-source Data and AI-Based Techniques Pais, Spurthy Maria, Bhattacharjee, Shrutilipi, Madasamy, Anand Kumar Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Land Surface Temperature, Emissivity, Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics
Increasing Ecosystem Fluxes Observed from Eddy Covariance and Zheng, Jiao, Zhou, Hao, Yue, Xu, Liu, Xichuan, Xia, Zhuge, Wang, Jun, Xiao, Jingfeng, Li, Xing, Zhang, Fangmin Evapotranspiration, Photosynthesis, Primary Production, Latent Heat Flux, VEGETATION PRODUCTIVITY, Solar Induced Fluorescence, Chlorophyll, Leaf Characteristics
Satellite-Constrained Reanalysis Reveals CO2 Versus Climate Process Bilir, T. Eren, Bloom, A. Anthony, Konings, Alexandra G., Liu, Junjie, Parazoo, Nicholas C., Quetin, Gregory R., Norton, Alexander J., Worden, Matthew A., Levine, Paul A., Ma, Shuang, Braghiere, Renato K., Longo, Marcos, Bowman, Kevin, Saatchi, Sassan, Schimel, David S., Miller, Charles E., OSullivan, Michael, Kang, Yanghui, Pandey, Sudhanshu, Patton, Alex J., Yang, Yan, Liu, Yanlan Leaf Characteristics, Photosynthetically Active Radiation, Leaf Area Index (LAI), Fraction Of Absorbed Photosynthetically Active Radiation (fapar), Solar Induced Fluorescence, Chlorophyll, Primary Production
Monitoring the Pulse of America's Natural Resources From the Orbiting Svoboda, Mark, Kira, Oz, Sun, Ying, Smith, William K., Magney, Troy, Wood, Jeffrey D., Parazoo, Nicholas C. Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics
Interannual variability of summertime formaldehyde (HCHO) vertical column density and its main drivers at northern high latitudes Zhao, Tianlang, Mao, Jingqiu, Ayazpour, Zolal, Gonzalez Abad, Gonzalo, Nowlan, Caroline R., Zheng, Yiqi Carbonaceous Aerosols, Nitrogen Oxides, Particulates, Hydrogen Cyanide, Emissions, Non-methane Hydrocarbons/Volatile Organic Compounds, Particulate Matter, Fire Occurrence, Nitrogen Oxides, Sulfur Dioxide, Carbon And Hydrocarbon Compounds, Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics
Research on Improving the Accuracy of SIF Data in Estimating Gross Primary Productivity in Arid Regions Liu, Wei, Wang, Yu, Mamtimin, Ali, Liu, Yongqiang, Gao, Jiacheng, Song, Meiqi, Aihaiti, Ailiyaer, Wen, Cong, Yang, Fan, Huo, Wen, Zhou, Chenglong, Peng, Jian, Sayit, Hajigul Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics
Propagation in the Drought Cascade: Observational Analysis Over the Continental US Entekhabi, Dara Tropopause, Surface Pressure, Air Temperature, Upper Air Temperature, Total Precipitable Water, Water Vapor, Cloud Height, Cloud Top Pressure, Cloud Top Temperature, Cloud Vertical Distribution, Emissivity, Sea Surface Temperature, Skin Temperature, Carbon Monoxide, Geopotential Height, Humidity, Water Vapor Profiles, Cloud Liquid Water/Ice, Outgoing Longwave Radiation, Methane, Atmospheric Ozone, Solar Induced Fluorescence, Chlorophyll, Primary Production, Leaf Characteristics
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