{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:02.511975", "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": "2024-May-17_to_2024-May-21_22.0_37.5"}, "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": 2024050001728}, "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": "May 17 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 21 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 98304.37832011266}, "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": ["Albania", "Bosnia and Herzegovina", "Greece", "Montenegro", "North Macedonia", "Serbia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe", "Europe", "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": []}, "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": 37.5}, "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": 22.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.5}, "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": 44.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[19.82, 39.32], [19.47, 39.47], [19.25, 40.0], [19.35, 40.25], [19.25, 40.5], [19.35, 40.75], [19.32, 40.82], [18.97, 40.97], 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39.32]]]]}}, "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": {"2024-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.25, 38.0], [21.47, 38.53], [22.0, 38.75], [22.53, 38.53], [22.75, 38.0], [22.65, 37.75], [22.75, 37.5], [22.53, 36.97], [22.0, 36.75], [21.47, 36.97], [21.25, 37.5], [21.35, 37.75], [21.25, 38.0]]]]}, "2024-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, 40.5], [19.97, 41.03], [20.5, 41.25], [21.03, 41.03], [21.25, 40.5], [21.13, 40.2], [21.53, 40.03], [21.68, 39.68], [22.03, 39.53], [22.18, 39.18], [22.53, 39.03], [22.75, 38.5], [22.65, 38.25], [22.75, 38.0], [22.65, 37.75], [22.75, 37.5], [22.53, 36.97], [22.0, 36.75], [21.47, 36.97], [21.25, 37.5], [21.35, 37.75], [21.25, 38.0], [21.35, 38.25], [21.32, 38.32], 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"value": 4.474462253968006}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.948778824937733, 19.93221103103548, 19.747246053299364, 20.350389466713068, 19.938814524966347]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.31573084619839, 22.58228024561066, 24.089960358187398, 25.021513443618403, 24.551506597556624]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.977538565560792, 4.1817185297376716, 4.331714641434287, 4.801689542360197, 4.314817183976839]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.67735246768342, 5.775056499463915, 5.777715500694512, 6.841471340392502, 6.771036306119129]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5705933770481946, 1.40438613223581, 1.5439726463127372, 1.7614066370275139, 1.6431497627852392]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.785151361037934, 1.851438909226628, 2.021617371631406, 2.297527713763718, 2.380014284708818]}}