Search results (1,992)

Volcanic Ash – T+0 annotated satellite image Issued 1500 UTC on Tue 16 June 2015 HIGH CONFIDENCE- -Bright returns on satellite imagery are meteorological cloud and NOT ASH. HIGH CONFIDENCE- -ASH detected from Kverkfjoll by radar to 8KM. LOW CONFIDENCE- - -Pilot report of ash at FL200, not seen on imagery. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1100 UTC on Tue 19 Nov 2013 EXERCISE KRAFLA eruption theoretical example HIGH VA visible on imagery MEDIUM VA partly obscured by high level cloud LOW VA reported from AIRREP but little evidence on imagery © Crown copyright Met Office

development Convener: tbd An AI/ML approach to improve NWP products 14:20 Amar Jyothi NCMRWF using remote sensing data 14:40 Characterizing the causal impact of aerosols on cloud liquid water path adjustments from observations using machine learning. Daniel Grosvenor 15:00 Coffee Break + Poster Session 2

development Convener: tbd An AI/ML approach to improve NWP products 14:20 Amar Jyothi NCMRWF using remote sensing data 14:40 Characterizing the causal impact of aerosols on cloud liquid water path adjustments from observations using machine learning. Daniel Grosvenor 15:00 Coffee Break + Poster Session 2

Volcanic Ash – 1530 UTC annotated satellite image Issued 1600 UTC on Friday 22 March 2019 HIGH CONFIDENCE- Clear VA signal 22/1530 UTC to FL460 in mobile LIDAR LOW CONFIDENCE- Skies covered with low-level meteorological cloud in vicinity of summit, affording poor view of discernible ash. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1530 UTC on Fri 14 Sept 2018 LOW CONFIDENCE- Skies covered with low-level cloud in vicinity of Askja, affording poor view of discernible ash. HIGH CONFIDENCE- PIREP reported VA at FL100 at 17/1500 UTC. Ash not discernible on imagery. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1345 UTC on Fri 18 May 2018 LOW CONFIDENCE- PIREP reports sighting of VA here, further north than expectations, and none visible in satellite imagery HIGH CONFIDENCE- Large gaps in cloud means VA is clearly visible in satellite imagery © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1200 UTC on Tue 12 May 2015 HIGH CONFIDENCE- -ASH detected from Katla by radar to FL490. HIGH CONFIDENCE- -Bright returns on satellite imagery are meteorological cloud and NOT ASH. HIGH CONFIDENCE- - -LIDAR detection of ash at Stornoway at FL150 at 12/1200Z. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 0315 UTC on Fri 29 Aug 2014 HIGH CONFIDENCE- -Red colour at tip of arrow is meteorological cloud and not VA. -No ash detected by Radar. -No ash detected on geostationary or polar orbiting satellite images. -No lightning detected by Met Office ATDNet, implying no eruptive plume. © Crown copyright Met Office

Volcanic Ash – T+0 annotated satellite image Issued 1000 UTC on Tue 12 May 2015 HIGH CONFIDENCE- - -Pilot report of ASH at N62 W15 at FL300 at 14/0930Z. -ASH detected from Katla by radar to FL490. HIGH CONFIDENCE- HIGH CONFIDENCE- -Bright returns on satellite imagery are meteorological cloud and NOT ASH. © Crown copyright Met Office