This is a Preprint and has not been peer reviewed. This is version 1 of this Preprint.
This is a Preprint and has not been peer reviewed. This is version 1 of this Preprint.
Methane is large contributor to climate change; for this reason, detecting and eliminating sources of methane emissions is a key element to minimizing the effects of on-going climate change. While there are a variety of methods currently used to detect methane emissions, ranging from ground-based sensors to aerial sensors like drones and aircraft, satellite detections provide a broad-area coverage addition to these other methods. Satellites are ideally situated to perform detections worldwide and continually monitor areas of concern.
In this paper, we present our WorldView-3 results from the 2022 Stanford Controlled Methane Release Experiment and describe how this experiment enabled us to uncover a faulty, public spectral database that had been in common use. In the single blind, controlled release experiment, our detection algorithms using Maxar’s WorldView-3 satellite and its shortwave infrared (SWIR) sensor was able to correctly detect and quantify emissions down to 33 kg per hour (kg/hr). The Stanford experiment was so well designed and executed that we quickly determined that our mass flow-rate (MFR) estimation included a factor-of-2 error, which was the result of faulty data in the Pacific Northwest National Laboratory (PNNL) spectral database. Once we uncovered and corrected this faulty data, our MFR aligned with the ground truth data.
https://doi.org/10.31223/X51T1C
Earth Sciences, Environmental Sciences, Oceanography and Atmospheric Sciences and Meteorology
methane, remote sensing, WorldView-3, controlled release, satellite
Published: 2023-05-25 14:39
Last Updated: 2023-05-25 18:39
Conflict of interest statement:
The authors have no competing interests to declare
Data Availability (Reason not available):
data is commercially available
There are no comments or no comments have been made public for this article.