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Record W4281689220 · doi:10.1071/aj21416

Engineering Poster E4: Strength in numbers: how the different satellite systems used to monitor methane emissions from space have different, yet complementary, capabilities to help the oil and gas industry meet its decarbonisation goals

2022· article· en· W4281689220 on OpenAlexaff
Jean‐François Gauthier

Bibliographic record

VenueThe APPEA Journal · 2022
Typearticle
Languageen
FieldEnvironmental Science
TopicAtmospheric and Environmental Gas Dynamics
Canadian institutionsInstitute of AgingGHGSat (Canada)
Fundersnot available
KeywordsMethaneMethane emissionsPetroleum industryConfusionSatelliteAnalyticsFossil fuelWork (physics)Computer scienceEnvironmental scienceSystems engineeringEngineeringData scienceAerospace engineeringWaste managementMechanical engineering

Abstract

fetched live from OpenAlex

Poster E4 Satellites are a powerful tool in monitoring methane emissions around the world. In the last 5 years, many new systems have been both announced and deployed, each with different capabilities, and designed for a specific purpose. With an increase in options also comes confusion as to how these systems can and should be used. This paper will examine how these systems complement each other’s strengths and weaknesses to provide actionable insight to the oil and gas industry. The performance parameters of several current and future satellite systems will be presented and compared, supported with recent examples when available. The importance of factors like frequency of revisit, detection threshold, precision, and spatial resolution will be discussed and contrasted with the needs of the oil and gas industry in gaining a more complete understanding of its methane emissions, in providing key information to stakeholders, and in enabling action to mitigate emissions. Results from GHGSat’s second generation of high-resolution satellites displaying measurements of methane plumes at oil and gas facilities around the world will be presented to demonstrate some of the advantages of the technology. These two satellites, GHGSat-C1 and C2 (Iris and Hugo), were launched in September 2020 and January 2021, respectively. Another eight satellites are planned to be launched by mid-2023. Finally, the ability of these systems to work together and complement each other’s capabilities, and some of the analytics tools used to augment the data, will be presented. To access the poster click the link on the right. To read the full paper click here

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.306
Threshold uncertainty score0.576

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0010.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.018
GPT teacher head0.222
Teacher spread0.204 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2022
Admission routes1
Has abstractyes

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