{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:32.590781", "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": "2018-Apr-17_to_2018-Apr-19_353.5_55.0"}, "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": 2018040002136}, "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": "April 17 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 19 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 77018.3004221082}, "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": ["Irish Sea and St. George's Channel", "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": 55.0}, "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": 353.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 354.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.75}, "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": {"2018-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.04, 53.0], [-10.25, 53.5], [-10.15, 53.75], [-10.25, 54.0], [-10.03, 54.53], [-9.5, 54.75], [-9.25, 54.65], [-9.18, 54.68], [-9.03, 55.03], [-8.68, 55.18], [-8.53, 55.53], [-8.0, 55.75], [-7.75, 55.65], [-7.5, 55.75], [-7.25, 55.65], [-7.0, 55.75], [-6.75, 55.65], [-6.5, 55.75], [-6.25, 55.65], [-6.0, 55.75], [-5.47, 55.53], [-5.32, 55.18], [-4.97, 55.03], [-4.75, 54.5], [-4.97, 53.97], [-5.37, 53.8], [-5.25, 53.5], [-5.47, 52.97], [-5.82, 52.82], [-5.97, 52.47], [-6.32, 52.32], [-6.47, 51.97], [-7.0, 51.75], [-7.25, 51.85], [-7.5, 51.75], [-7.75, 51.85], [-7.82, 51.82], [-7.97, 51.47], [-8.5, 51.25], [-8.75, 51.35], [-9.0, 51.25], [-9.25, 51.35], [-9.5, 51.25], [-10.03, 51.47], [-10.25, 52.0], [-10.15, 52.25], [-10.25, 52.5], [-10.04, 53.0]]]]}, "2018-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.04, 53.0], [-10.25, 53.5], [-10.15, 53.75], [-10.25, 54.0], [-10.03, 54.53], [-9.5, 54.75], [-9.25, 54.65], [-9.18, 54.68], [-9.03, 55.03], [-8.68, 55.18], [-8.53, 55.53], [-8.0, 55.75], [-7.75, 55.65], [-7.5, 55.75], [-7.25, 55.65], [-7.0, 55.75], [-6.75, 55.65], [-6.5, 55.75], [-6.25, 55.65], [-6.0, 55.75], [-5.47, 55.53], [-5.32, 55.18], [-4.97, 55.03], [-4.75, 54.5], [-4.97, 53.97], [-5.37, 53.8], [-5.25, 53.5], [-5.47, 52.97], [-5.82, 52.82], [-5.97, 52.47], [-6.32, 52.32], [-6.47, 51.97], [-7.0, 51.75], [-7.25, 51.85], [-7.5, 51.75], [-7.75, 51.85], [-7.82, 51.82], [-7.97, 51.47], [-8.5, 51.25], [-8.75, 51.35], [-9.0, 51.25], [-9.25, 51.35], [-9.5, 51.25], [-10.03, 51.47], [-10.25, 52.0], [-10.15, 52.25], [-10.25, 52.5], [-10.04, 53.0]]]]}, "2018-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.04, 53.0], [-10.25, 53.5], [-10.15, 53.75], [-10.25, 54.0], [-10.03, 54.53], [-9.5, 54.75], [-9.25, 54.65], [-9.18, 54.68], [-9.03, 55.03], [-8.68, 55.18], [-8.53, 55.53], [-8.0, 55.75], [-7.75, 55.65], [-7.5, 55.75], [-7.25, 55.65], [-7.0, 55.75], [-6.75, 55.65], [-6.5, 55.75], [-6.25, 55.65], [-6.0, 55.75], [-5.47, 55.53], [-5.32, 55.18], [-4.97, 55.03], [-4.75, 54.5], [-4.97, 53.97], [-5.37, 53.8], [-5.25, 53.5], [-5.47, 52.97], [-5.82, 52.82], [-5.97, 52.47], [-6.32, 52.32], [-6.47, 51.97], [-7.0, 51.75], [-7.25, 51.85], [-7.5, 51.75], [-7.75, 51.85], [-7.82, 51.82], [-7.97, 51.47], [-8.5, 51.25], [-8.75, 51.35], [-9.0, 51.25], [-9.25, 51.35], [-9.5, 51.25], [-10.03, 51.47], [-10.25, 52.0], [-10.15, 52.25], [-10.25, 52.5], [-10.04, 53.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.495359153291361}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9786217903394103}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.069900795968124, 12.692240036753105, 12.536196335153136]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.978633271222918, 13.953369236101594, 13.78232976965171]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7706131254235666, 4.246835719522509, 3.9184165260721553]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.665827363038602, 5.495359153291361, 5.015081754825189]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6717956772415494, 1.89695462285033, 1.7621308380847671]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.092454988228116, 2.3494561812905204, 2.1436572096916664]}}