Category: Ranga Myneni

Visiting scholars in Professor Myneni’s group publish three articles

March 22nd, 2018 in 2018, Faculty, Mar-18, News, Pub-18, Publications, Ranga Myneni

Visiting Scholar Dr. Kai Yan from Beijing Normal University and Mr. Baodong Xu from the Institute of Remote Sensing and Digital Earth, Beijing, published three articles on the physics and implementation of LAI/FPAR algorithm for the NASA’s Suomi VIIRS sensor and an evaluation of the derived product. The articles are in collaboration with PhD students Taejin Park and Chi Chen in Professor Ranga Myneni’s research group.

Yan et al., 2017. “Generating Global Products of LAI and FPAR From SNPP-VIIRS Data: Theoretical Background and Implementation.” IEEE Transactions on Geoscience & Remote Sensing, doi:10.1109/TGRS.2017.2775247.

Xu et al., 2018. “Analysis of Global LAI/FPAR Products from VIIRS and MODIS Sensors for Spatio-Temporal Consistency and Uncertainty from 2012–2016.” Forests, doi:10.3390/f9020073.

Xu et al., 2018. “An integrated method for validating long-term leaf area index products using global networks of site-based measurements.” Remote Sensing of the Environment, doi:10.1016/j.rse.2018.02.049.

For more information about Prof. Myneni’s works, please visit

PhD student Chi Chen and Prof. Myneni coauthor paper in Nature Sustainability

January 26th, 2018 in 2018, Faculty, Graduate students, Jan-18, News, Pub-18, Publications, Ranga Myneni

A paper coauthored by PhD student Chi Chen and Professor Ranga Myneni entitled “Increased vegetation growth and carbon stock in China karst via ecological engineering” was recently published in the inaugural issue of Nature Sustainability.

The paper describes the use of MODIS LAI data and show a widespread increase in leaf area index (a proxy for green vegetation cover), and aboveground biomass carbon. In spite of drought conditions, aboveground biomass carbon increased by 9% (+0.05 Pg C y−1), mainly in areas of high conservation effort. The authors conclude that large scale conservation projects can contribute to a greening Earth with positive effects on carbon sequestration to mitigate climate change. The paper can be downloaded from

A News & Views item describing the article to the general public appeared in Nature.

For more information about Prof. Myneni’s works, please visit

Prof. Myneni coauthors paper in Nature Ecology and Evolution

January 12th, 2018 in 2018, Faculty, Jan-18, News, Pub-17, Publications, Ranga Myneni

A paper coauthored by Professor Ranga Myneni entitled “Velocity of change in vegetation productivity over northern high latitudes” was recently published in Nature Ecology and Evolution. The paper compares changes in the spatial patterns of vegetation productivity and temperature using the velocity of change concept, which expresses these two variables in the same unit of displacement per time. Click to read the full article.

For more information about Prof. Myneni’s works, please visit

Prof. Myneni co-authors papers in Nature Climate Change

June 12th, 2017 in 2017, Faculty, Jun-17, News, Pub-17, Publications, Ranga Myneni

Professor Ranga Myneni has co-authored two papers in Nature Climate Change.

One describes how the greening of the Earth, largely due to CO2 fertilization, has also increased evapo-transpiration and thus cooled the planet.

The second  describes the weakening relationship between temperature and spring carbon uptake in the recent years. These two recent papers from this group of authors are of a larger body of work on the biophysical and biochemical effects of a greening Earth.

Prof. Myneni’s web site is

PhD student Taejin Park and Prof. Myneni co-author article in Science Advances

May 30th, 2017 in 2017, Faculty, Graduate students, May-17, Pub-17, Publications, Ranga Myneni

NASA Graduate Fellowship recipient and PhD student Taejin Park and Professor Ranga Myneni recently co-authored a paper with their Norwegian colleagues in the journal Science Advance on how vegetation greening in the Arctic due to global warming is affecting the caribou population. The article can be downloaded from

Prof. Myneni’s web site is

PhD student Chi Chen publishes his first research article

May 3rd, 2017 in 2017, Faculty, Graduate students, Juri Knjazihhin, May-17, Pub-17, Publications, Ranga Myneni

Second year PhD student Chi Chen published his first research article entitled “Prototyping of LAI and FPAR Retrievals from MODIS Multi-Angle Implementation of Atmospheric Correction (MAIAC) Data” in the open source journal Remote Sensing. Mr. Chen is advised by Profs. Knyazikhin and Myneni. The article can be downloaded here.

PhD student Taejin Park and Prof. Myneni co-author article in ERL

April 10th, 2017 in 2017, Apr-17, Faculty, Graduate students, Pub-17, Publications, Ranga Myneni

Taejin Park and Prof. Ranga Myneni contributed to an article recently published in Environmental Research Letters under the title “Was the extreme Northern Hemisphere greening in 2015 predictable?” The article can be freely downloaded from

Prof. Myneni and former visiting scholar Zhu author one of top 10 climate change papers of 2016

February 7th, 2017 in 2017, Awards, Faculty, Feb-17, News, Pub-16, Publications, Ranga Myneni, Researchers

A paper entitled “Greening of the Earth and its Drivers” published in the journal Nature Climate Change in April 2016 has made it into the top 10 climate change articles of 2016. The first author Zaichun Zhu was a Visiting Scholar in Prof. Myneni’s research group. Details can be found here, and the full article can be found here.

Professor Ranga Myneni co-authors article in PNAS

November 4th, 2016 in 2016, Faculty, Nov-16, Pub-16, Publications, Ranga Myneni

Earth and Environment Professor Ranga Myneni recently coauthored an article titled “Reducing uncertainties in decadal variability of the global carbon budget with multiple datasets” in the journal Proceedings of the National Academy of Sciences of the USA. Conventional approaches of calculating the global carbon budget makes the land sink the most uncertain of all budget terms. This is because, rather than being constrained by observations, it is inferred as a residual in the budget equation. In this article, the authors overcome this limitation by performing a Bayesian fusion of different available observation-based estimates of decadal carbon fluxes. This approach reduces the uncertainty in the land sink by 41% and in the ocean sink by 46%. These results are significant because they give unprecedented confidence in the role of the increasing land sink in regulating atmospheric CO2, and shed light on the past decadal trend.

Professor Myneni’s website is

PhD student Sungho Choi publishes dissertation research in Global Ecology and Biogeography

September 26th, 2016 in Graduate students, Pub-16, Ranga Myneni, Sept-16

PhD student Sungho Choi recently published his dissertation research in the journal Global Ecology and Biogeography. Entitled “Application of the metabolic scaling theory and water–energy balance equation to model large-scale patterns of maximum forest canopy heights,” the article describes refinements to a model called Allometric Scaling and Resource Limitations (ASRL), accounts for the size-dependent metabolism of trees whose maximum growth is constrained by local resource availability. The article can be downloaded at

Mr. Choi was a Fulbright Scholar and a recipient of the NASA Graduate Fellowship. He hopes to defend his dissertation during the fall 2016 term. His PhD supervisor is Prof. Myneni.