{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:46.622694", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2017-Dec-19_to_2017-Dec-24_352.0_53.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2017120002189}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "December 19 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 24 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 70422.78496822345}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Ireland", "United Kingdom"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Celtic Sea", "North Atlantic Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 53.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 352.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.53, 53.03], [-10.0, 53.25], [-9.75, 53.15], [-9.68, 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54.0], [-10.03, 54.53]]]]}, "2017-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.03, 54.53], [-9.5, 54.75], [-9.25, 54.65], [-9.18, 54.68], [-9.03, 55.03], [-8.5, 55.25], [-8.25, 55.15], [-8.18, 55.18], [-8.03, 55.53], [-7.5, 55.75], [-6.97, 55.53], [-6.75, 55.0], [-6.85, 54.75], [-6.82, 54.68], [-6.47, 54.53], [-6.25, 54.0], [-6.47, 53.47], [-7.0, 53.25], [-7.25, 53.35], [-7.32, 53.32], [-7.47, 52.97], [-7.82, 52.82], [-7.97, 52.47], [-8.5, 52.25], [-9.03, 52.47], [-9.18, 52.82], [-9.25, 52.85], [-9.5, 52.75], [-10.03, 52.97], [-10.25, 53.5], [-10.15, 53.75], [-10.25, 54.0], [-10.03, 54.53]]]]}, "2017-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.03, 54.53], [-9.5, 54.75], [-9.25, 54.65], [-9.18, 54.68], [-9.03, 55.03], [-8.5, 55.25], [-8.25, 55.15], [-8.18, 55.18], [-8.03, 55.53], [-7.5, 55.75], [-6.97, 55.53], [-6.75, 55.0], [-6.85, 54.75], [-6.82, 54.68], [-6.47, 54.53], [-6.25, 54.0], [-6.47, 53.47], [-7.0, 53.25], [-7.25, 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"anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.632706214011348, 4.814378337914873, 5.021797240045011, 4.773909126467111, 5.548882083448851, 5.464976331862185]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.395636580044538, 5.574363854729484, 5.7425613675993645, 5.2661402707901175, 6.596330757953865, 5.865124276679296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4596050420744489, 1.4242609208177233, 1.4243303360885162, 1.2921815873896358, 1.4798491959636864, 1.4702786368617382]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5929331472472528, 1.5905598261843283, 1.594491691018531, 1.387642962568629, 1.8208581377302708, 1.6136161337403991]}}