{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:50.521892", "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-Jan-28_to_2023-Jan-30_40.0_30.5"}, "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": 2023010002918}, "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 28 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 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": 94940.50439954537}, "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": ["Iraq", "Jordan", "Saudi Arabia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia", "Asia"]}, "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": 30.5}, "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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[37.82, 32.68], [37.97, 33.03], [38.5, 33.25], [38.75, 33.15], [39.0, 33.25], [39.25, 33.15], [39.5, 33.25], [39.75, 33.15], [39.82, 33.18], [39.97, 33.53], [40.5, 33.75], [40.75, 33.65], [41.0, 33.75], [41.53, 33.53], [41.75, 33.0], [41.65, 32.75], [41.75, 32.5], [41.53, 31.97], [41.18, 31.82], [41.15, 31.75], [41.18, 31.68], [41.53, 31.53], [41.68, 31.18], [42.03, 31.03], [42.25, 30.5], [42.03, 29.97], [41.68, 29.82], [41.53, 29.47], [41.0, 29.25], [40.75, 29.35], [40.5, 29.25], [40.0, 29.46], [39.5, 29.25], [38.97, 29.47], [38.82, 29.82], [38.47, 29.97], [38.32, 30.32], [38.25, 30.35], [38.0, 30.25], [37.75, 30.35], [37.5, 30.25], [36.97, 30.47], [36.75, 31.0], [36.97, 31.53], [37.38, 31.7], [37.25, 32.0], [37.47, 32.53], [37.82, 32.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "W.C.Asia", "Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, 32.0], [37.47, 32.53], [37.82, 32.68], [37.97, 33.03], [38.5, 33.25], [38.75, 33.15], [39.0, 33.25], [39.25, 33.15], [39.5, 33.25], [39.75, 33.15], [39.82, 33.18], [39.97, 33.53], [40.5, 33.75], [40.75, 33.65], [41.0, 33.75], [41.53, 33.53], [41.75, 33.0], [41.65, 32.75], [41.75, 32.5], [41.53, 31.97], [41.18, 31.82], [41.15, 31.75], [41.18, 31.68], [41.53, 31.53], [41.68, 31.18], [42.03, 31.03], [42.25, 30.5], [42.03, 29.97], [41.68, 29.82], [41.53, 29.47], [41.0, 29.25], [40.75, 29.35], [40.5, 29.25], [40.0, 29.46], [39.5, 29.25], [38.97, 29.47], [38.82, 29.82], [38.47, 29.97], [38.32, 30.32], [38.25, 30.35], [38.0, 30.25], [37.75, 30.35], [37.5, 30.25], [36.97, 30.47], [36.75, 31.0], [36.97, 31.53], [37.38, 31.7], [37.25, 32.0]]]]}, "2023-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, 32.0], [37.47, 32.53], [37.82, 32.68], [37.97, 33.03], [38.5, 33.25], [38.75, 33.15], [39.0, 33.25], [39.25, 33.15], [39.5, 33.25], [39.75, 33.15], [39.82, 33.18], [39.97, 33.53], [40.5, 33.75], [40.75, 33.65], [41.0, 33.75], [41.53, 33.53], [41.75, 33.0], [41.65, 32.75], [41.75, 32.5], [41.53, 31.97], [41.18, 31.82], [41.15, 31.75], [41.18, 31.68], [41.53, 31.53], [41.68, 31.18], [42.03, 31.03], [42.25, 30.5], [42.03, 29.97], [41.68, 29.82], [41.53, 29.47], [41.0, 29.25], [40.75, 29.35], [40.5, 29.25], [40.0, 29.46], [39.5, 29.25], [38.97, 29.47], [38.82, 29.82], [38.47, 29.97], [38.32, 30.32], [38.25, 30.35], [38.0, 30.25], [37.75, 30.35], [37.5, 30.25], [36.97, 30.47], [36.75, 31.0], [36.97, 31.53], [37.38, 31.7], [37.25, 32.0]]]]}, "2023-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, 32.0], [37.47, 32.53], [37.82, 32.68], [37.97, 33.03], [38.5, 33.25], [38.75, 33.15], [39.0, 33.25], [39.25, 33.15], [39.5, 33.25], [39.75, 33.15], [39.82, 33.18], [39.97, 33.53], [40.5, 33.75], [40.75, 33.65], [41.0, 33.75], [41.53, 33.53], [41.75, 33.0], [41.65, 32.75], [41.75, 32.5], [41.53, 31.97], [41.18, 31.82], [41.15, 31.75], [41.18, 31.68], [41.53, 31.53], [41.68, 31.18], [42.03, 31.03], [42.25, 30.5], [42.03, 29.97], [41.68, 29.82], [41.53, 29.47], [41.0, 29.25], [40.75, 29.35], [40.5, 29.25], [40.0, 29.46], [39.5, 29.25], [38.97, 29.47], [38.82, 29.82], [38.47, 29.97], [38.32, 30.32], [38.25, 30.35], [38.0, 30.25], [37.75, 30.35], [37.5, 30.25], [36.97, 30.47], [36.75, 31.0], [36.97, 31.53], [37.38, 31.7], [37.25, 32.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.41389912476717}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.656609703185287}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.171001791646347, 13.41130338265367, 13.398180382596593]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.082351281785975, 16.4354713022729, 16.428717198517234]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.580080830931853, 4.721656801898313, 4.668091476725696]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.288722594590979, 6.098903123137745, 6.41389912476717]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4558163092185303, 1.530536652978618, 1.564529088910041]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.982787327162853, 1.850827283573134, 2.056658725896654]}}