{"id":"met-office-uk-deterministic-whole-atmosphere","type":"Collection","links":[{"rel":"items","type":"application/geo+json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/met-office-uk-deterministic-whole-atmosphere/items"},{"rel":"parent","type":"application/json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/"},{"rel":"root","type":"application/json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/"},{"rel":"self","type":"application/json","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/met-office-uk-deterministic-whole-atmosphere"},{"rel":"license","href":"https://creativecommons.org/licenses/by-sa/4.0/deed.en","type":"text/html","title":"Creative Commons Attribution-ShareAlike 4.0"},{"rel":"describedby","href":"https://www.metoffice.gov.uk/services/data/external-data-channels","title":"Met Office Dataset Documentation"},{"rel":"describedby","href":"https://planetarycomputer.microsoft.com/dataset/met-office-uk-deterministic-whole-atmosphere","type":"text/html","title":"Human readable dataset overview and reference"},{"rel":"http://www.opengis.net/def/rel/ogc/1.0/queryables","type":"application/schema+json","title":"Queryables","href":"https://planetarycomputer.microsoft.com/api/stac/v1/collections/met-office-uk-deterministic-whole-atmosphere/queryables"},{"rel":"describedby","href":"https://planetarycomputer.microsoft.com/dataset/met-office-uk-deterministic-whole-atmosphere","title":"Human readable dataset overview and reference","type":"text/html"}],"title":"Whole Atmosphere collection Met Office UKV 2km deterministic forecast","assets":{"thumbnail":{"href":"https://ai4edatasetspublicassets.blob.core.windows.net/assets/pc_thumbnails/met-office-uk-deterministic-whole-atmosphere.jpg","type":"image/jpeg","roles":["thumbnail"],"title":"Whole Atmosphere collection Met Office UKV 2km deterministic forecast thumbnail"},"geoparquet-items":{"href":"abfs://items/met-office-uk-deterministic-whole-atmosphere.parquet","type":"application/x-parquet","roles":["stac-items"],"title":"GeoParquet STAC items","description":"Snapshot of the collection's STAC items exported to GeoParquet format.","table:storage_options":{"account_name":"pcstacitems"}}},"extent":{"spatial":{"bbox":[[-13.7254,48.8643,4.3408,61.6102]]},"temporal":{"interval":[["2023-12-15T00:00:00Z",null]]}},"license":"proprietary","keywords":["Met Office","Weather","Forecast","UK","CAPE","Cloud","Freezing","Wet Bulb","Lightning"],"providers":[{"url":"https://www.metoffice.gov.uk/","name":"Met Office","roles":["producer","licensor","processor"]},{"url":"https://planetarycomputer.microsoft.com","name":"Microsoft","roles":["host","processor"]}],"description":"This collection offers 11 whole-atmosphere parameters from the Met Office UKV 2km deterministic forecast. This is a high-resolution gridded weather forecast for the UK, with a resolution of 0.018 degrees, projected on to a 2km horizontal grid. The data is available as NetCDF files.\n\n## Coverage area\nThe forecast covers the UK and Ireland, with the following latitude and longitude coordinates for each corner of the included area:\n* Southwest: 48.8643°N, 10.6734°W \n* Northwest: 61.3322°N, 13.7254°W \n* Northeast: 61.6102°N, 4.3408°E \n* Southeast: 49.0594°N, 2.4654°E \n\n## Timesteps\nThe following time steps are available:\n* every hour from 0 to 54 hours\n* every 3 hours from 57 to 120 hours\n\nExceptions:\n* CAPE surface (CAPE_surface) has 15 minutely timesteps from 0 to 12 hours, hourly timesteps from 13 to 54 hours and 3 hourly timesteps from 57 to 120 hours\n* Hourly lightning flash accumulation (lightning_flash_accumulation-PT01H) is only available every hour from 1 to 54 hours\n \n## Update frequency\nThere are three lengths of model run, each with its own update frequency:\nThere are three lengths of model run, each with its own update frequency: \n* Nowcast: forecasts the next 12 hours and are at 0100, 0200, 0400, 0500, 0700, 0800, 1000, 1100, 1300, 1400, 1600, 1700, 1900, 2000, 2200 and 2300 UTC. \n* Short: forecasts the next 54 hours and are at 0000, 0600, 0900, 1200, 1800 and 2100 UTC. \n* Medium: forecasts the next 120 hours and are at 0300 and 1500 UTC.\n\n## Archive length and latency\n\nAs of December 2025, the archive contains data from December 2023 onwards. Forecasts will continue to be available for at least two years from their data date.\n\nThe data is typically available 3-6 hours after the model run time.\n\n## Technical specs\nThe data is available as NetCDF files. NetCDF (Network Common Data Form) is an interface for array-orientated data access and a library that supports the interface. It is composed of 3 components:\n* variables store the data\n* dimensions give relevant dimension information for the variables\n* attributes provide auxiliary information about the variables or dataset itself\n\nNetCDF is used within the atmospheric and oceanic science communities and is network transparent, allowing for it to be accessed by computers that store integers, characters and floating-point numbers.\n\nIris supports NetCDF files through reading, writing and handling. Iris implements a model based on the CF conventions, giving a format-agnostic interface for working with data.\n\n[Find further support on using Iris with NetCDF files.](https://scitools-iris.readthedocs.io/en/stable/) \n\n## Help us improve the data services we offer\n\n[Join the Met Office research panel](https://forms.office.com/Pages/ResponsePage.aspx?id=YYHxF9cgRkeH_VD-PjtmGdxioYGoFbFIkZuB_q8Fb3VUQkoxRVQzTFdUMzNMVzczWVM5VTc3QTY3MC4u) to help us understand how people interact with weather and climate data, uncover challenges and explore opportunities.\n\n## How to cite\n\nUKV 2km deterministic forecast was accessed on DATE from the Microsoft Planetary Computer (https://zenodo.org/records/7261897).\n\n## License\n\nBritish Crown copyright 2023-2025, the Met Office, is licensed under [CC BY-SA](https://creativecommons.org/licenses/by-sa/4.0/deed.en).\n\n## Providers\n[Met Office](https://www.metoffice.gov.uk/)\n\nSee all datasets managed by [Met Office.](https://planetarycomputer.microsoft.com/catalog?filter=met+office)\n\n## Contact\n[servicedesk@metoffice.gov.uk](mailto:servicedesk@metoffice.gov.uk). Service desk is only available Mon – Fri, 09:00 until 17:00 UTC (-1 hour during BST). \n\nAs a non-operational service we aim to respond to any service support enquiries within 3-5 business days.\n","item_assets":{"CAPE_surface":{"type":"application/netcdf","roles":["data"],"title":"CAPE surface","forecast:variable":"atmosphere_convective_available_potential_energy_wrt_surface"},"cloud_amount_of_low_cloud":{"type":"application/netcdf","roles":["data"],"title":"Cloud amount of low cloud","forecast:variable":"low_type_cloud_area_fraction"},"cloud_amount_of_high_cloud":{"type":"application/netcdf","roles":["data"],"title":"Cloud amount of high cloud","forecast:variable":"high_type_cloud_area_fraction"},"cloud_amount_of_total_cloud":{"type":"application/netcdf","roles":["data"],"title":"Cloud amount of total cloud","forecast:variable":"cloud_area_fraction"},"cloud_amount_of_medium_cloud":{"type":"application/netcdf","roles":["data"],"title":"Cloud amount of medium cloud","forecast:variable":"medium_type_cloud_area_fraction"},"height_AGL_at_freezing_level":{"type":"application/netcdf","roles":["data"],"title":"Height AGL at freezing level","forecast:variable":"freezing_level_height"},"cloud_amount_below_1000ft_ASL":{"type":"application/netcdf","roles":["data"],"title":"Cloud amount below 1000ft ASL","forecast:variable":"cloud_area_fraction_assuming_only_consider_surface_to_1000_feet_asl"},"CAPE_most_unstable_below_500hPa":{"type":"application/netcdf","roles":["data"],"title":"CAPE most unstable below 500hPa","forecast:variable":"atmosphere_convective_available_potential_energy"},"lightning_flash_accumulation-PT01H":{"type":"application/netcdf","roles":["data"],"title":"Hourly lightning flash accumulation","forecast:variable":"number_of_lightning_flashes_per_unit_area"},"height_AGL_at_wet_bulb_freezing_level":{"type":"application/netcdf","roles":["data"],"title":"Height AGL at wet bulb freezing level","forecast:variable":"wet_bulb_freezing_level_height"},"height_AGL_at_cloud_base_where_cloud_cover_2p5_oktas":{"type":"application/netcdf","roles":["data"],"title":"Height AGL at cloud base where cloud cover 2p5 oktas","forecast:variable":"cloud_base_height_2p5_oktas"}},"msft:region":"westeurope","stac_version":"1.0.0","msft:group_id":"met-office-uk-deterministic","cube:variables":{"cloud_area_fraction":{"type":"data","unit":"1","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Fraction of horizontal grid square occupied by cloud as diagnosed by the model cloud scheme. This is for the whole atmosphere column as seen from the surface or the top of the atmosphere."},"freezing_level_height":{"type":"data","unit":"m","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Height of the 0 degrees celsius isotherm (freezing level) above the surface (ground)."},"cloud_base_height_2p5_oktas":{"type":"data","unit":"m","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Height of the base of the lowest cloud above the surface (ground) where there is at least 2.5 oktas (eighths) of cloud cover. This corresponds to scattered cloud."},"low_type_cloud_area_fraction":{"type":"data","unit":"1","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Fraction of horizontal grid square occupied by cloud in the low-level cloud height range (from the lowest model layer containing the 111m height level up to but excluding the lowest model layer containing 1949m height level)."},"high_type_cloud_area_fraction":{"type":"data","unit":"1","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Fraction of horizontal grid square occupied by cloud in the high-level cloud height range (from the lowest model layer containing the 5574m height level up to but excluding the lowest model layer containing 13608m height level)."},"wet_bulb_freezing_level_height":{"type":"data","unit":"m","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Height of the wet bulb freezing level (i.e. where the wet bulb temperature is 0oC) above sea level. This is also referred to as the altitude of the wet bulb freezing level or (geometric) height above the geoid, which is the reference geopotential surface. Wet bulb temperature is defined as the temperature of a parcel of air cooled to saturation (100% relative humidity) by the evaporation of water into it with the latent heat supplied by the parcel."},"medium_type_cloud_area_fraction":{"type":"data","unit":"1","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Fraction of horizontal grid square occupied by cloud in the mid-level cloud height range (from the lowest model layer containing the 1949m height level up to but excluding the lowest model layer containing 5574m height level)."},"number_of_lightning_flashes_per_unit_area":{"type":"data","unit":"count/m2","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"This represents the total (cloud-to-cloud and cloud-to-ground) lightning flashes per square metre within the previous hour"},"atmosphere_convective_available_potential_energy":{"type":"data","unit":"J/kg","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"CAPE (Convective Available Potential Energy) calculated for the most unstable parcel where the most unstable parcel is defined as the parcel with the highest fixed level CAPE launched from any level (including screen-level=1.5m) within 500hPa of the surface pressure."},"atmosphere_convective_available_potential_energy_wrt_surface":{"type":"data","unit":"J/kg","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Value of CAPE (Convective Available Potential Energy) calculated for a surface based parcel where a surface based parcel is defined as a parcel initiated with thermodynamic properties at screen level height (1.5m) i.e. the parcel is launched from screen level."},"cloud_area_fraction_assuming_only_consider_surface_to_1000_feet_asl":{"type":"data","unit":"1","dimensions":["latitude","longitude","forecast:reference_datetime","forecast:horizon"],"description":"Fraction of horizontal grid square occupied by cloud below 1000 feet above sea level."}},"msft:container":"deterministic","cube:dimensions":{"latitude":{"axis":"y","type":"spatial","extent":[50,62]},"longitude":{"axis":"x","type":"spatial","extent":[5,15]},"forecast:horizon":{"type":"temporal","extent":[null,null],"values":["PT0H","PT1H","PT2H","PT3H","PT4H","PT5H","PT6H","PT7H","PT8H","PT9H","PT10H","PT11H","PT12H","PT13H","PT14H","PT15H","PT16H","PT17H","PT18H","PT19H","PT20H","PT21H","PT22H","PT23H","PT24H","PT25H","PT26H","PT27H","PT28H","PT29H","PT30H","PT31H","PT32H","PT33H","PT34H","PT35H","PT36H","PT37H","PT38H","PT39H","PT40H","PT41H","PT42H","PT43H","PT44H","PT45H","PT46H","PT47H","PT48H","PT49H","PT50H","PT51H","PT52H","PT53H","PT54H","PT57H","PT60H","PT63H","PT66H","PT69H","PT72H","PT75H","PT78H","PT81H","PT84H","PT87H","PT90H","PT93H","PT96H","PT99H","PT102H","PT105H","PT108H","PT111H","PT114H","PT117H","PT120H"]},"forecast:reference_datetime":{"type":"temporal","extent":["2023-12-15T00:00:00Z",null]}},"stac_extensions":["https://stac-extensions.github.io/forecast/v0.2.0/schema.json","https://stac-extensions.github.io/datacube/v2.0.0/schema.json"],"msft:storage_account":"ukmoeuwest","msft:short_description":"Met Office UK Deterministic Whole Atmosphere Level"}