Home › Categories › Science & Nature› Critique On Precision Requirements For Satellite Methane Isotope Retrieval

Critique On Precision Requirements For Satellite Methane Isotope Retrieval.pdf

amt-2018-450-SC1.pdf
Preview of Critique on Precision Requirements for Satellite Methane Isotope Retrieval
🔗 Source: amt.copernicus.org
📊 Size: 59 KB
📄 Pages: 3 pages
⬇️ Downloads: 45

Summary

The interactive comment critiques a study by Edward Malina et al. (2018) examining the precision required for satellite-based retrieval of methane (CH4) isotopic composition, specifically focusing on non-scattering atmospheres. The authors argue that the study's assumption of 10 per mill precision is inadequate for scientific interpretation due to several reasons:

1. Misleading Figure and Interpretation: The figure presented in Malina et al. (2018) suggests a much higher precision than achievable with current instruments, leading to an incorrect conclusion about the feasibility of isotopic retrievals.

2. Realistic Instrument Performance: Satellite instruments do not observe CH4 from pure sources but rather above a relatively high background. Even strong elevations in total column CH4 (around 100 ppb) only represent a 5% increase over background, which translates to a maximum d13C change of 1.5 per mill—far below the 10 per mill target suggested.

3. Scientific Relevance: Isotope signals of 10 per mill are usually not observed even with in-situ techniques in the boundary layer unless directly measuring a massive local source, indicating that such precision is beyond current and planned satellite instruments' capabilities.

In conclusion, while the study's figure leads to an overly optimistic view, using realistic precision requirements reveals that scientifically valuable CH4 isotopic retrievals are not currently feasible with available or planned satellite instruments.

Download File

Description

The authors critique a study on satellite retrieval of methane isotopes, arguing that the precision requirement (10 per mill) is unrealistically low for scientific value, citing misleading figures from the original work. They highlight the need for more stringent standards for isotopic composition analysis in tropospheric methane measurements.

Technical Information

  • File Format: PDF
  • File Size: 59 KB
  • Pages: 3
  • Language: EN
  • Total Downloads: 45
  • Last Updated: 3 weeks ago

Document Overview

This PDF document about Critique on Precision Requirements for Satellite Methane Isotope Retrieval provides comprehensive information and guidance. Whether you're a beginner or advanced user, this resource offers valuable insights into Critique on Precision Requirements for Satellite Methane Isotope Retrieval.

Related Topics

If you're interested in Critique on Precision Requirements for Satellite Methane Isotope Retrieval, you might also want to explore:

Critique guideCritique tutorialPrecision guidePrecision tutorialRequirements guideRequirements tutorialSatellite guideSatellite tutorialMethane guideMethane tutorialIsotope guideIsotope tutorialRetrieval guideRetrieval tutorial

Related Categories

Business & Finance
41204 documents
Education & Learning
22711 documents
Health & Wellness
8956 documents
Technology
4783 documents

Related Documents

Preview of Precision Medicine Retrieval
PDF file

Precision Medicine Retrieval

204 KBEN5 pages
Alibaba DAMO Academy's submissions to TREC Precision Medicine 2020 achieved state-of-the-art performance in evidence quality assessment using a...
Download
Preview of Green Version
PDF file

Green Version

6.45 MBDavid G. StreetsEN32 pages
A review of current capabilities in estimating emissions from satellite retrievals is presented, focusing on the application of satellite data to...
Download
Preview of CBM Water Study Concerns
PDF file

CBM Water Study Concerns

104 KBbarb tilleyEN4 pages
Three concerns are raised regarding the validity of Dr. Blyth's report on coalbed methane related water well complaints: 1.
Download
Preview of Gas Contamination Fingerprinting
PDF file

Gas Contamination Fingerprinting

809 KBKarlis MuehlenbachsEN10 pages
Researchers analyzed gas contamination in groundwater and soil in a petroliferous region of Alberta, Canada, using isotopic fingerprinting to...
Download
Preview of Grading form return rate
PDF file

Grading form return rate

434 KBEsther WongEN5 pages
NHS Blood and Transplant's CardiThoracic Advisory Group introduced Grading of Retrieved Donor Heart and Lung forms as a pilot on January 18, 2017, to...
Download

Download Critique on Precision Requirements for Satellite Methane Isotope Retrieval eBooks for free and learn more about Critique on Precision Requirements for Satellite Methane Isotope Retrieval. These books contain exercises and tutorials to improve your practical skills, at all levels!

Not satisfied with this document? We have related documents to Critique on Precision Requirements for Satellite Methane Isotope Retrieval, try searching with similar keywords: Critique on Precision Requirements for Satellite Methane Isotope Retrieval, critique indh listes des fichiers pdf critique indh critique indh, "Hinder och möjliggörare för 1.5°-livsstilar: Ytliga och djupgående strukturella faktorer som påverkar potentialen för hållbar k, Ändring av genomföranderam för en europeisk plattform för utbyte av balansenergi från frekvensåterställn ingsreserver med manuell, Rekommendationer för vaccination mot covid-19 för särskilda grupper av barn -, förstudie för att utvärdera förutsättningarna att genom en innovationsupphandli ng utveckla en drifttjänst för geoenergilager, Självkänsla och KBT ‐ Påverkas självkänslan vid KBT för depression och ångesttillstånd?Se lf‐esteem and CBT ‐ How does CBT for de, Matglädje för alla: en guide till rätt konsistens för olika behov

You can download PDF versions of the user's guide, manuals and ebooks about Critique on Precision Requirements for Satellite Methane Isotope Retrieval, you can also find and download for free A free online manual (notices) with beginner and intermediate, Downloads Documentation, You can download PDF files (or DOC and PPT) about Critique on Precision Requirements for Satellite Methane Isotope Retrieval for free, but please respect copyrighted ebooks.