Validated Case Studies · Offshore Analytics

Every claim we make about detection, attribution or quantification is testable against public super-emitter events. Each case below has independent third-party verification of the source, coordinates and magnitude — so we can measure Offshore Analytics end-to-end against reality, not against ourselves.

Jun 2023 – Jan 2024 · 3 independent sources

Buzachi Neft blowout

Karaturun East, Kazakhstan

205-day well blowout; one of the largest recorded oilfield methane releases. Published TROPOMI raster available.

Sensor
TROPOMI + PRISMA / EnMAP / EMIT / GHGSat
Magnitude
128 ± 36 kt CH₄

Oct 2015 – Feb 2016 · 2 independent sources

Aliso Canyon (SS-25)

SoCalGas storage, California, USA

Largest US methane release on record from a subsurface storage failure — pre-satellite validation case.

Sensor
Aircraft in-situ (Scientific Aviation)
Magnitude
97.1 kt CH₄

May 2018 – Mar 2019 · 2 independent sources

Permian Basin super-emitters

TX / NM, USA

Persistent basin-scale super-emission — the anchor study for TROPOMI-based portfolio monitoring.

Sensor
TROPOMI (Sentinel-5P)
Magnitude
~2.7 Tg CH₄ / yr basin total

26 Sep 2022 · 3 independent sources

Nord Stream pipeline rupture

Baltic Sea

Offshore subsea gas pipeline rupture — single-day release visible from orbit; directly on-thesis for offshore monitoring.

Sensor
TROPOMI + surface reports
Magnitude
75 – 230 kt CH₄

How we pick cases

Source, timing and magnitude must be established by at least one peer-reviewed paper or a UN/IEA report.
Coordinates must be public.
The event must be resolvable at TROPOMI resolution or better, or via a well-documented in-situ campaign.
No cherry-picking hyperparameters after the fact — the same attribution scorer and quantifier used in production are used on the case.