Datasets & Services provided by @NERC_COMET
Joined February 2020
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COMET Datasets & Services retweeted
📢COMET InSAR Training Workshop 19-21 November 2024.
Registration of Interest is live at👇: forms.office.com/e/GYXfiTvt0…
#InSAR #Sentinel1 #LiCSAR #Deformation #Earthquakes #Volcanoes
COMET Datasets & Services retweeted
There was a Sentinel-1 acquisition in Afghanistan today, about 7 hours after the earthquake. The @NERC_COMET @COMET_database system was activated automatically and produced results this afternoon.
Event page with links to download data:
comet.nerc.ac.uk/earthquakes…
COMET Datasets & Services retweeted
hello world. the article using @COMET_database exploring tiny coregistration offsets of @CopernicusEU Sentinel-1 to get plate motion velocities is born! agupubs.onlinelibrary.wiley.…
from the original idea and supervised by @GeoAndyHooper , with Pawan Piromthong.
thanks, @NERC_COMET
COMET Datasets & Services retweeted
In Albino et al, 2022, Remote Sensing, we lay out a framework for regional processing and analysis of Sentinel-1 InSAR data at volcanoes. We used 64 African volcanoes as a testbed, and classified 7 as ‘linear’, six as ‘transient’ and three as ‘hybrid’,
mdpi.com/2072-4292/14/22/570…
COMET Datasets & Services retweeted
In Biggs et al, 2022, Bull Volc, we applied our machine learning methods to the biggest dataset yet - 650,000 Sentinel-1 volcano interferograms from @COMET_database link.springer.com/article/10…
COMET Datasets & Services retweeted
Our paper on characterizing and correcting the #InSAR phase bias (aka fading signal) is now out in Remote Sensing of Environment.
Here is the open access link: authors.elsevier.com/a/1esFp….
Thanks to @GeoAndyHooper @timwright_leeds @HomaAnsari_ @MLazecky (1/3)
COMET Datasets & Services retweeted
Pretty subtle and masked by atmospheric noise, but possibly this. Red dot is USGS epicentre.
COMET Datasets & Services retweeted
How about this beauty from the descending track. gws-access.jasmin.ac.uk/publ…
See event page comet.nerc.ac.uk/earthquakes… for more frames as we process them.
COMET Datasets & Services retweeted
6-day S1 LiCSAR interferogram for the M7.4 Southern Qinghai earthquake - beautifully highlights shallow afterslip occurring along the fault rupture.
Links to data download from comet.nerc.ac.uk/earthquakes…
@COMET_database @NERC_COMET @ESA_EO
COMET Datasets & Services retweeted
Our ML model doi.org/10.1016/j.rse.2019.0… deployed on JASMIN @ceda_news flagged ground movement at Nyiragongo!
@VisionInstitute @NERC_COMET
Check more events here:
comet.nerc.ac.uk/comet-volca…
Machine Learning algorithm developed at @BristolUni @NERC_COMET detected ground deformation signals
related to the Nyiragongo’s dyke intrusion @puinantheera @JulietBiggs @skebmeier @FabienAlbino
comet.nerc.ac.uk/comet-volca…
COMET Datasets & Services retweeted
Great to see the @CopernicusEU Sentinel-1 @NERC_COMET @COMET_database interferogram in the opening talk at the @ESA_EO. Thanks again to @esa_eo for the extra acquisitions
COMET Datasets & Services retweeted
Qinghai, China #Earthquake rupture delineated from #Sentinel1 SAR offsets (in range) indicate 156 km long rupture with single major trace rupture along most of length except in the east with a second splay #COMET - download kmz homepages.see.leeds.ac.uk/~e…
ALT Image generated from satellite radar showing the offsets from the 2021 May Qinghai earthquake indicating where the fault rupture broke the surface and offset the ground by a couple of metres. The fault rupture is almost 160 km long, and is a single trace along most of its length except in the East where there are two strands.
COMET Datasets & Services retweeted
Descending track data for Mw7.4 earthquake. Southern Qinghai, China. View/download: comet.nerc.ac.uk/earthquakes… #LiCSAR #InSAR #Sentinel1
COMET Datasets & Services retweeted
Long Lat
97.59955 34.74810
97.74925 34.74533
97.78562 34.73659
97.81812 34.74090
97.89503 34.73188
97.96522 34.70979
98.00767 34.69704
98.05731 34.68365
98.10195 34.67517
98.17121 34.66043
98.24676 34.64016
98.30936 34.62636
98.36670 34.61880
98.42805 34.60608
COMET Datasets & Services retweeted
Incoherence trace delineating rupture from Southern Qinghai #earthquake
COMET Datasets & Services retweeted
Here's the stitched inteferogram (in google earth).
kmzs and full data:
southern half:
gws-access.ceda.ac.uk/public…
northern half here:
gws-access.ceda.ac.uk/public…
@COMET_database
COMET Datasets & Services retweeted
Clear coseismic deformation of the Mw7.3 Qinghai EQ captured by ALOS-2 implies that the surface ruptures (>1m) occurred along the known fault. I applied the split-bandwidth interferometry in range to overcome the decorrelation in standard InSAR.
We GSI detected coseismic deformation (>1 m) by Mw7.3 Qinghai earthquake on May 21 2021 (UTC) with InSAR analysis of JAXA ALOS2/PALSAR-2.
gsi.go.jp/cais/topic20210521…
COMET Datasets & Services retweeted
LiCSAR InSAR data for Mw6.1 earthquake. 28 km NW of Dali, China. 2021-05-21 13:48:37UTC. comet.nerc.ac.uk/earthquakes… #Earthquake #Sentinel1 #COMET
COMET Datasets & Services retweeted
The Global Waveform Catalogue hosted @COMET_database @NERC_COMET is now fully interactive! comet.nerc.ac.uk/gwfm_catalo… #earthquakes