{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:19:00.514073", "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-14_to_2022-Mar-17_8.0_40.5"}, "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": 2022030002012}, "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 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 17 2022"}, "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": 70492.31296629686}, "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": ["Mediterranean 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": 40.5}, "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": 8.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 4.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 9.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[3.97, 41.53], [4.5, 41.75], [4.75, 41.65], [4.82, 41.68], [4.97, 42.03], [5.5, 42.25], [5.75, 42.15], [6.0, 42.25], [6.25, 42.15], [6.5, 42.25], [7.03, 42.03], [7.18, 41.68], [7.25, 41.65], [7.5, 41.75], [7.75, 41.65], [8.0, 41.75], [8.25, 41.65], [8.5, 41.75], [8.75, 41.65], [9.0, 41.75], [9.53, 41.53], [9.75, 41.0], [9.54, 40.5], [9.75, 40.0], [9.53, 39.47], [9.18, 39.32], [9.15, 39.25], [9.25, 39.0], [9.03, 38.47], [8.5, 38.25], [7.97, 38.47], [7.82, 38.82], [7.75, 38.85], [7.5, 38.75], [6.97, 38.97], [6.82, 39.32], [6.75, 39.35], [6.5, 39.25], [5.97, 39.47], [5.82, 39.82], [5.75, 39.85], [5.5, 39.75], [4.97, 39.97], [4.82, 40.32], [4.75, 40.35], [4.5, 40.25], [3.97, 40.47], [3.75, 41.0], [3.97, 41.53]]]]}}, "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": {"2022-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.5, 40.25], [3.97, 40.47], [3.75, 41.0], [3.97, 41.53], [4.5, 41.75], 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"value": 1.7294608876439101}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.281648178924172, 14.634854619750229, 14.482681977846426, 14.190500253483378]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.838204503352927, 15.272593827105709, 15.189779103805051, 14.770273857238408]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6581391661653868, 1.9418736425604797, 1.685882330268917, 1.4635177711083118]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0615703388628503, 3.5765350473675426, 2.7851190210982395, 2.453942626383821]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2668017334780164, 1.5595245093669015, 1.4661015637641472, 1.2441457223116716]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6433071830532442, 2.25269005568813, 2.024345367731397, 1.673744824993399]}}