{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:14.872527", "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": "2025-Jan-17_to_2025-Jan-20_14.5_36.0"}, "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": 2025010001880}, "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": "January 17 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 20 2025"}, "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": 60803.214485810415}, "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": ["Italy"]}, "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": ["Ionian Sea", "Malta Plateau", "Mediterranean Sea", "Tyrrhenian 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": 36.0}, "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": 14.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[13.5, 37.75], [12.97, 37.97], [12.75, 38.5], [12.97, 39.03], [13.32, 39.18], [13.47, 39.53], [13.82, 39.68], [13.97, 40.03], [14.5, 40.25], [14.75, 40.15], [15.0, 40.25], [15.25, 40.15], [15.5, 40.25], [16.03, 40.03], [16.25, 39.5], [16.15, 39.25], [16.18, 39.18], [16.53, 39.03], [16.68, 38.68], [17.03, 38.53], [17.18, 38.18], [17.53, 38.03], [17.75, 37.5], [17.53, 36.97], [17.0, 36.75], [16.75, 36.85], [16.5, 36.75], [16.25, 36.85], [16.18, 36.82], [16.03, 36.47], [15.68, 36.32], [15.53, 35.97], [15.18, 35.82], [15.03, 35.47], [14.5, 35.25], [13.97, 35.47], [13.75, 36.0], [13.85, 36.25], [13.82, 36.32], [13.47, 36.47], [13.25, 37.0], [13.47, 37.53], [14.0, 37.75], [13.75, 37.85], [13.5, 37.75]], [[14.53, 37.53], [14.68, 37.18], [14.75, 37.15], [14.82, 37.18], [14.85, 37.25], [14.75, 37.5], [14.85, 37.75], [14.82, 37.82], [14.75, 37.85], [14.5, 37.75], [14.25, 37.85], [14.0, 37.75], [14.53, 37.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.5, 37.75], [12.97, 37.97], [12.75, 38.5], [12.97, 39.03], [13.5, 39.25], [13.75, 39.15], [14.0, 39.25], [14.25, 39.15], [14.5, 39.25], [14.75, 39.15], [15.0, 39.25], [15.25, 39.15], [15.5, 39.25], [15.75, 39.15], [16.0, 39.25], [16.53, 39.03], [16.68, 38.68], [17.03, 38.53], [17.18, 38.18], [17.53, 38.03], [17.75, 37.5], [17.53, 36.97], [17.0, 36.75], [16.75, 36.85], [16.5, 36.75], [16.25, 36.85], [16.18, 36.82], [16.03, 36.47], [15.68, 36.32], [15.53, 35.97], [15.18, 35.82], [15.03, 35.47], [14.5, 35.25], [13.97, 35.47], [13.75, 36.0], [13.85, 36.25], [13.82, 36.32], [13.47, 36.47], [13.25, 37.0], [13.47, 37.53], [14.0, 37.75], [13.75, 37.85], [13.5, 37.75]], [[14.53, 37.53], [14.68, 37.18], [14.75, 37.15], [14.82, 37.18], [14.85, 37.25], [14.75, 37.5], [14.85, 37.75], [14.82, 37.82], [14.75, 37.85], [14.5, 37.75], [14.25, 37.85], [14.0, 37.75], [14.53, 37.53]]]]}, "2025-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 39.53], [13.82, 39.68], [13.97, 40.03], [14.5, 40.25], [14.75, 40.15], [15.0, 40.25], [15.25, 40.15], [15.5, 40.25], [16.03, 40.03], [16.25, 39.5], [16.15, 39.25], [16.18, 39.18], [16.53, 39.03], [16.68, 38.68], [17.03, 38.53], [17.18, 38.18], [17.53, 38.03], [17.75, 37.5], [17.53, 36.97], [17.0, 36.75], [16.75, 36.85], [16.5, 36.75], [16.25, 36.85], [16.18, 36.82], [16.03, 36.47], [15.68, 36.32], [15.53, 35.97], [15.18, 35.82], [15.03, 35.47], [14.5, 35.25], [13.97, 35.47], [13.75, 36.0], [13.85, 36.25], [13.82, 36.32], [13.47, 36.47], [13.25, 37.0], [13.47, 37.53], [14.0, 37.75], [13.75, 37.85], [13.5, 37.75], [12.97, 37.97], [12.75, 38.5], [12.97, 39.03], [13.32, 39.18], [13.47, 39.53]], [[14.53, 37.53], [14.68, 37.18], [14.75, 37.15], [14.82, 37.18], [14.85, 37.25], [14.75, 37.5], [14.85, 37.75], [14.82, 37.82], [14.75, 37.85], [14.5, 37.75], [14.25, 37.85], [14.0, 37.75], [14.53, 37.53]]]]}, "2025-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.47, 39.53], [13.82, 39.68], [13.97, 40.03], [14.5, 40.25], [14.75, 40.15], [15.0, 40.25], [15.25, 40.15], [15.5, 40.25], [16.03, 40.03], [16.25, 39.5], [16.15, 39.25], [16.18, 39.18], [16.53, 39.03], [16.68, 38.68], [17.03, 38.53], [17.18, 38.18], [17.53, 38.03], [17.75, 37.5], [17.53, 36.97], [17.0, 36.75], [16.75, 36.85], [16.5, 36.75], [16.25, 36.85], [16.18, 36.82], [16.03, 36.47], [15.68, 36.32], [15.53, 35.97], [15.18, 35.82], [15.03, 35.47], [14.5, 35.25], [13.97, 35.47], [13.75, 36.0], [13.85, 36.25], [13.82, 36.32], [13.47, 36.47], [13.25, 37.0], [13.47, 37.53], [14.0, 37.75], [13.75, 37.85], [13.5, 37.75], [12.97, 37.97], [12.75, 38.5], [12.97, 39.03], [13.32, 39.18], [13.47, 39.53]], [[14.53, 37.53], [14.68, 37.18], [14.75, 37.15], [14.82, 37.18], [14.85, 37.25], [14.75, 37.5], [14.85, 37.75], [14.82, 37.82], [14.75, 37.85], [14.5, 37.75], [14.25, 37.85], [14.0, 37.75], [14.53, 37.53]]]]}, "2025-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.97, 37.03], [14.5, 37.25], [14.75, 37.15], [15.0, 37.25], [15.53, 37.03], [15.75, 36.5], [15.53, 35.97], [15.18, 35.82], [15.03, 35.47], [14.5, 35.25], [13.97, 35.47], [13.75, 36.0], [13.85, 36.25], [13.75, 36.5], [13.97, 37.03]]], [[[13.47, 39.53], [13.82, 39.68], [13.97, 40.03], [14.5, 40.25], [14.75, 40.15], [15.0, 40.25], [15.25, 40.15], [15.5, 40.25], [16.03, 40.03], [16.25, 39.5], [16.15, 39.25], [16.25, 39.0], [16.15, 38.75], [16.25, 38.5], [16.15, 38.25], [16.25, 38.0], [16.03, 37.47], [15.5, 37.25], [14.97, 37.47], [14.82, 37.82], [14.75, 37.85], [14.5, 37.75], [14.25, 37.85], [14.0, 37.75], [13.47, 37.97], [13.25, 38.5], [13.35, 38.75], [13.25, 39.0], [13.47, 39.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1169867244004195}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1771632614050316}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.803661742033796, 14.738867492675809, 15.083432159423808, 14.719909583197705]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.040591176350915, 15.713187154134118, 16.872927602132165, 15.863795216878259]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1891200347729125, 2.0892936340396657, 2.4239151236814926, 1.8980114085117483]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8924072886447334, 2.635842134942152, 3.1169867244004195, 2.250935601965921]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.482807617524091, 1.4405742266017378, 1.6828020965697001, 1.2800620295313971]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5900487832631809, 1.7360356583383694, 2.2708592439626725, 1.40994881885475]}}