{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:53.217284", "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": "2022-Mar-04_to_2022-Mar-06_336.5_39.5"}, "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": 2022030001520}, "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": "March 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 06 2022"}, "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": 160410.81164211754}, "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": ["Portugal"]}, "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": ["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": 39.5}, "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": 336.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "336.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 332.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 337.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-28.75, 39.0], [-28.53, 39.53], [-28.0, 39.75], [-27.75, 39.65], [-27.5, 39.75], [-27.25, 39.65], [-27.0, 39.75], [-26.75, 39.65], [-26.68, 39.68], [-26.54, 40.0], [-26.68, 40.32], [-27.0, 40.46], [-27.5, 40.25], [-27.75, 40.35], [-28.0, 40.25], [-28.53, 40.47], [-28.75, 41.0], [-28.53, 41.53], [-28.18, 41.68], [-28.03, 42.03], [-27.5, 42.25], [-27.25, 42.15], [-27.18, 42.18], [-27.03, 42.53], [-26.5, 42.75], [-26.25, 42.65], [-26.0, 42.75], [-25.75, 42.65], [-25.5, 42.75], [-24.97, 42.53], [-24.75, 42.0], [-24.85, 41.75], [-24.75, 41.5], [-24.87, 41.2], [-24.75, 41.15], [-24.5, 41.25], [-23.97, 41.03], [-23.82, 40.68], [-23.75, 40.65], [-23.5, 40.75], [-22.97, 40.53], [-22.75, 40.0], [-22.85, 39.75], [-22.82, 39.68], [-22.47, 39.53], [-22.25, 39.0], [-22.35, 38.75], [-22.25, 38.5], [-22.47, 37.97], [-22.82, 37.82], [-22.97, 37.47], [-23.32, 37.32], [-23.47, 36.97], [-24.0, 36.75], [-24.25, 36.85], [-24.5, 36.75], [-24.75, 36.85], [-24.82, 36.82], [-24.97, 36.47], [-25.5, 36.25], [-25.75, 36.35], [-26.0, 36.25], [-26.53, 36.47], [-26.68, 36.82], [-26.75, 36.85], [-27.0, 36.75], [-27.53, 36.97], [-27.7, 37.38], [-28.0, 37.25], [-28.53, 37.47], [-28.75, 38.0], [-28.65, 38.25], [-28.75, 38.5], [-28.65, 38.75], [-28.75, 39.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-28.75, 38.5], [-28.649999999999977, 38.75], [-28.75, 39.0], [-28.529999999999973, 39.53], [-28.0, 39.75], [-27.75, 39.65], [-27.5, 39.75], [-27.25, 39.65], [-27.0, 39.75], [-26.75, 39.65], [-26.680000000000007, 39.68], [-26.54000000000002, 40.0], [-26.680000000000007, 40.32], [-27.0, 40.46], [-27.5, 40.25], [-27.75, 40.35], [-28.0, 40.25], [-28.529999999999973, 40.47], [-28.75, 41.0], [-28.529999999999973, 41.53], [-28.180000000000007, 41.68], [-28.029999999999973, 42.03], [-27.5, 42.25], [-27.25, 42.15], 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"value": 1.7702436188445094}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.292468441586266, 16.31700816508163, 16.437766388255568]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.036674406580914, 17.12224021523832, 17.146858902147926]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.741466972927151, 1.7361607477403989, 1.8331031358659784]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.131287425222979, 2.04319230408521, 2.1971312190559047]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2579789084148667, 1.3044439930041272, 1.4404193069249382]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5592136582735083, 1.564690652320405, 1.7991001911443427]}}