SMOS-IC vegetation optical depth index in monitoring aboveground carbon changes in the tropical continents during 2010–2016

Lei Fan (1) , Jean-Pierre Wigneron (1) , Arnaud Mialon (2) , Nemesio Rodriguez‐fernandez (2) , Amen Al-Yaari (1) , Yann H. Kerr (2) , M. Brandt (3) , Philippe Ciais (4)

1 UMR ISPA - Interactions Sol Plante Atmosphère
2 CESBIO - Centre d'études spatiales de la biosphère
3 IGN - Department of Geosciences and Natural Resource Management [Copenhagen]
4 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]

Tropical aboveground carbon changes during 2010-2016 were estimated by a newly developed vegetation optical depth (VOD) product retrieved from the low-frequency L-band (1.4 GHz) passive microwave observations from the Soil Moisture and Ocean salinity (SMOS) satellite. The aboveground carbon changes estimated by VOD in the tropical region during 2010-2016 indicate the tropical region acts as a net carbon source of 111 Tg C yr-1 during 2010-2016. The declines in tropical aboveground carbon were found mainly in eastern America, African drylands and Indonesia.

Domaines: Sciences du Vivant [q-bio]; Sciences de l'environnement

Lei Fan, Jean-Pierre Wigneron, Arnaud Mialon, Nemesio Rodriguez‐fernandez, Amen Al-Yaari, et al.. SMOS-IC vegetation optical depth index in monitoring aboveground carbon changes in the tropical continents during 2010–2016. IEEE International Geoscience and Remote Sensing Symposium, Jul 2018, Valencia, Spain. ⟨10.1109/IGARSS.2018.8518750⟩. ⟨hal-02736967⟩