EGU21-14811
https://doi.org/10.5194/egusphere-egu21-14811
EGU General Assembly 2021
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Mapping methane point emissions with imaging spectroscopy satellite missions

Luis Guanter1, Itziar Irakulis-Loitxate1, Elena Sánchez-García1, Javier Gorroño1, Yongguang Zhang2, Yinnian Liu3, Joannes D. Maasakkers4, and Ilse Aben4
Luis Guanter et al.
  • 1Research Institute of Water and Environmental Engineering, Universitat Politecnica de Valencia, Valencia, Spain (lguanter@fis.upv.es)
  • 2International Institute for Earth System Sciences, Nanjing University, Nanjing, China
  • 3CAS Key Laboratory of Infrared System Detection and Imaging Technology, Shanghai Institute of Technical Physics, Shanghai, China
  • 4SRON Netherlands Institute for Space Research, Utrecht, Netherlands

Imaging spectroscopy, also known as hyperspectral imaging, is a remote sensing technique in which images of the solar radiation reflected by the Earth are produced in hundreds of spectral channels between the visible and the shortwave infrared part of the electromagnetic spectrum (roughly 400–2500 nm). The 2100-2450 nm spectral window can be used for methane retrievals, as it has been demonstrated over the last years with airborne imaging  spectrometers, and very recently also with space-based instruments. Satellite-based hyperspectral images are acquired with a typical spatial sampling for satellite data of 30 m, a spatial coverage between 30x30 and 60x60 km per scene, and a spectral sampling of 10 nm. In this work, we will present an overview of the state-of-the-art of methane mapping with imaging spectroscopy missions. We will review the characteristics of the available missions, the main retrieval approaches, and will present examples of methane emission detection from a number of missions and locations around the Earth.

 

How to cite: Guanter, L., Irakulis-Loitxate, I., Sánchez-García, E., Gorroño, J., Zhang, Y., Liu, Y., Maasakkers, J. D., and Aben, I.: Mapping methane point emissions with imaging spectroscopy satellite missions, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-14811, https://doi.org/10.5194/egusphere-egu21-14811, 2021.

Corresponding presentation materials formerly uploaded have been withdrawn.