Liyin He

TL;DR: It is found that high-resolution SIF products from OCO-2 and TROPOMI outperformed coarse-resolution GOME-2 SIF product in crop yield prediction, and using NIRv could achieve similar or even better yield prediction performance than using Oco-2 or TROPOspheric Monitoring Instrument Sif products.

TL;DR: In this paper, the authors examined how well solar-induced chlorophyll fluorescence (SIF) can inform crop productivity across the United States and found highly linear gross primary production (GPP):SIF relationships for C4 crops, while C3 crops show some saturation of GPP at high light when SIF continues to increase.

TL;DR: In this paper, satellite observations of solar induced chlorophyll fluorescence from TROPOspheric Monitoring Instrument and Orbiting Carbon Observatory reveal a 16-day shift in the seasonal cycle of photosynthesis relative to 2018, along with a 15% lower peak value.

TL;DR: In this article, the authors determined the emissions of CH_4 in Los Angeles from 2011 to 2017 using a mountaintop remote sensing mapping spectrometer and found that the seasonal component peaks in the winter and is correlated with utility natural gas consumption from the residential and commercial sectors and not from the industrial and gas-fired power plant sectors.

TL;DR: In this paper, the authors examined a well-characterized eddy covariance site in a drought-prone temperate deciduous broadleaf forest combining tower measurements and satellite observations and found that an increase in spring temperature usually leads to enhanced spring gross primary production (GPP), but a GPP reduction in late growing season due to water limitation.