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Article Dans Une Revue Global Change Biology Année : 2022

Constraining China’s land carbon sink from emerging satellite CO 2 observations: progress and challenges

Yilong Wang
Xiangjun Tian
  • Fonction : Auteur
Matthew Johnson
  • Fonction : Auteur
Sajeev Philip
  • Fonction : Auteur
David Baker
  • Fonction : Auteur
Andrew Schuh
  • Fonction : Auteur
Feng Deng
  • Fonction : Auteur
Xingying Zhang
  • Fonction : Auteur
Lu Zhang
  • Fonction : Auteur
Dan Zhu
Xuhui Wang

Résumé

Land carbon sink is a vital component for the achievement of China's ambitious carbon neutrality goal, but its magnitude is poorly known. Atmospheric observations and inverse models are valuable tools to constrain the China's land carbon sink. Space-based CO2 measurements from satellites form an emerging data stream for application of such atmospheric inversions. Here, we reviewed the satellite missions that is dedicated to the monitoring of CO2, and the recent progresses on the inversion of China's land carbon sink using satellite CO2 measurements. We summarized the limitations and challenges in current space platforms, retrieval algorithms, and the inverse modeling. It is shown that there are large uncertainties of contemporary satellite-based estimates of China's land carbon sink. We discussed future opportunities of continuous improvements in three aspects to better constrain China's land carbon sink with space-based CO2 measurements.
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Dates et versions

hal-03775340 , version 1 (12-09-2022)

Identifiants

Citer

Yilong Wang, Xiangjun Tian, Frederic Chevallier, Matthew Johnson, Sajeev Philip, et al.. Constraining China’s land carbon sink from emerging satellite CO 2 observations: progress and challenges. Global Change Biology, 2022, 28 (23), pp.6838-6846. ⟨10.1111/gcb.16412⟩. ⟨hal-03775340⟩
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