{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:05.038680", "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": "2023-Mar-17_to_2023-Mar-19_7.5_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": 2023030002063}, "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 17 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 19 2023"}, "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": 94749.75987921687}, "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": ["Denmark", "Germany", "Netherlands"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe", "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": ["North Sea"]}, "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": 7.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "7.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[5.82, 52.68], [5.85, 52.75], [5.75, 53.0], [5.85, 53.25], [5.75, 53.5], [5.85, 53.75], [5.75, 54.0], [5.97, 54.53], [6.5, 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"West&Central-Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.25, 52.0], [5.47, 52.53], [5.82, 52.68], [5.85, 52.75], [5.75, 53.0], [5.85, 53.25], [5.75, 53.5], [5.85, 53.75], [5.75, 54.0], [5.97, 54.53], [6.5, 54.75], [6.75, 54.65], [7.0, 54.75], [7.25, 54.65], [7.5, 54.75], [8.03, 54.53], [8.18, 54.18], [8.25, 54.15], [8.32, 54.18], [8.35, 54.25], [8.25, 54.5], [8.35, 54.75], [8.25, 55.0], [8.47, 55.53], [9.0, 55.75], [9.25, 55.65], [9.5, 55.75], [9.75, 55.65], [10.0, 55.75], [10.53, 55.53], [10.75, 55.0], [10.65, 54.75], [10.68, 54.68], [10.75, 54.65], [11.0, 54.75], [11.53, 54.53], [11.75, 54.0], [11.65, 53.75], [11.75, 53.5], [11.53, 52.97], [11.0, 52.75], [10.75, 52.85], [10.5, 52.75], [10.25, 52.85], [10.18, 52.82], [10.03, 52.47], [9.68, 52.32], [9.65, 52.25], [9.75, 52.0], [9.53, 51.47], [9.18, 51.32], 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12.569906327743922, 11.27779924260767]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.609607450366701, 5.493741092168091, 4.533596023242183]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.467690153577053, 6.6410495557727245, 5.985266468536224]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4430517674792043, 1.7473029742524542, 1.4596173606370806]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6360641966241702, 1.969839432124475, 1.7240455837958109]}}