{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:04.312976", "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": "2020-Nov-06_to_2020-Nov-09_1.5_45.0"}, "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": 2020110001308}, "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": "November 06 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 09 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 59540.707736719065}, "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": ["France"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "West&Central-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": []}, "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": 45.0}, "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": 1.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "1.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -0.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.18, 44.68], [-0.15, 44.75], [-0.25, 45.0], [-0.03, 45.53], [0.5, 45.75], [0.75, 45.65], [0.82, 45.68], [0.97, 46.03], [1.5, 46.25], [1.75, 46.15], [2.0, 46.25], [2.53, 46.03], [2.68, 45.68], [3.03, 45.53], [3.25, 45.0], [3.15, 44.75], [3.25, 44.5], [3.03, 43.97], [2.68, 43.82], [2.53, 43.47], [2.0, 43.25], [1.75, 43.35], [1.68, 43.32], [1.53, 42.97], [1.0, 42.75], [0.75, 42.85], [0.5, 42.75], [0.25, 42.85], [0.0, 42.75], [-0.25, 42.85], [-0.5, 42.75], [-1.03, 42.97], [-1.25, 43.5], [-1.03, 44.03], [-0.68, 44.18], [-0.53, 44.53], [-0.18, 44.68]]]]}, "2020-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.18, 44.68], [-0.15, 44.75], [-0.25, 45.0], [-0.03, 45.53], [0.38, 45.7], [0.25, 46.0], [0.47, 46.53], [0.82, 46.68], [0.97, 47.03], [1.5, 47.25], [2.03, 47.03], [2.25, 46.5], [2.12, 46.2], [2.53, 46.03], [2.68, 45.68], [3.03, 45.53], [3.18, 45.18], [3.53, 45.03], [3.75, 44.5], [3.65, 44.25], [3.75, 44.0], [3.65, 43.75], [3.75, 43.5], [3.53, 42.97], [3.0, 42.75], [2.47, 42.97], [2.32, 43.32], [2.25, 43.35], [2.0, 43.25], [1.75, 43.35], [1.68, 43.32], [1.53, 42.97], [1.0, 42.75], [0.75, 42.85], [0.5, 42.75], [0.25, 42.85], [0.0, 42.75], [-0.25, 42.85], [-0.5, 42.75], [-1.03, 42.97], [-1.25, 43.5], [-1.03, 44.03], [-0.68, 44.18], [-0.53, 44.53], [-0.18, 44.68]]]]}, "2020-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.18, 44.68], [-0.15, 44.75], [-0.25, 45.0], [-0.03, 45.53], [0.38, 45.7], [0.25, 46.0], [0.47, 46.53], [0.82, 46.68], [0.97, 47.03], [1.5, 47.25], [2.03, 47.03], [2.25, 46.5], [2.12, 46.2], [2.53, 46.03], [2.68, 45.68], [3.03, 45.53], [3.18, 45.18], [3.53, 45.03], [3.75, 44.5], [3.65, 44.25], [3.75, 44.0], [3.65, 43.75], [3.75, 43.5], [3.53, 42.97], [3.0, 42.75], [2.47, 42.97], [2.32, 43.32], [2.25, 43.35], [2.0, 43.25], [1.75, 43.35], [1.68, 43.32], [1.53, 42.97], [1.0, 42.75], [0.75, 42.85], [0.5, 42.75], [0.25, 42.85], [0.0, 42.75], [-0.25, 42.85], [-0.5, 42.75], [-1.03, 42.97], [-1.25, 43.5], [-1.03, 44.03], [-0.68, 44.18], [-0.53, 44.53], [-0.18, 44.68]]]]}, "2020-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.5, 47.25], [2.03, 47.03], [2.25, 46.5], [2.03, 45.97], [1.68, 45.82], [1.62, 45.7], [1.75, 45.65], [2.0, 45.75], [2.53, 45.53], [2.68, 45.18], [2.75, 45.15], [3.0, 45.25], [3.53, 45.03], [3.75, 44.5], [3.65, 44.25], [3.75, 44.0], [3.65, 43.75], [3.75, 43.5], [3.53, 42.97], [3.0, 42.75], [2.47, 42.97], [2.32, 43.32], [2.25, 43.35], [2.0, 43.25], [1.47, 43.47], [1.25, 44.0], [1.35, 44.25], [1.32, 44.32], [0.97, 44.47], [0.75, 45.0], [0.88, 45.3], [0.47, 45.47], [0.25, 46.0], [0.47, 46.53], [0.82, 46.68], [0.97, 47.03], [1.5, 47.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.509286682977972}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.973304917383515}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.555105360939137, 15.387731968385879, 14.331963839835169, 12.956053300187648]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.901032689540159, 17.035836995088005, 15.566065207404733, 14.351850216818491]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.4249255815674875, 5.720353752728567, 4.872130648210497, 4.434882441519118]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.932240776165372, 6.509286682977972, 5.628385573709181, 4.900397342341648]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5390986850814723, 1.9774928045136184, 1.6348719770330633, 1.4454163260181536]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6983866501521645, 2.22007911754758, 1.8583863158340357, 1.5511760932089063]}}