{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:55.902654", "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-Nov-20_to_2022-Nov-23_34.0_24.0"}, "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": 2022110002524}, "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": "November 20 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 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": 110734.36182476321}, "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": ["Egypt", "Sudan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa"]}, "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": ["Red 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": 24.0}, "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": 34.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "34.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 33.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[32.97, 25.03], [33.32, 25.18], [33.47, 25.53], [34.0, 25.75], [34.3, 25.63], [34.47, 26.03], [35.0, 26.25], [35.53, 26.03], [35.68, 25.68], [36.03, 25.53], [36.25, 25.0], [36.15, 24.75], [36.18, 24.68], [36.53, 24.53], [36.75, 24.0], [36.63, 23.7], [37.03, 23.53], [37.25, 23.0], [37.04, 22.5], [37.25, 22.0], [37.03, 21.47], [36.68, 21.32], [36.53, 20.97], [36.0, 20.75], [35.47, 20.97], [35.32, 21.32], [35.25, 21.35], [35.18, 21.32], [35.15, 21.25], [35.25, 21.0], [35.03, 20.47], [34.5, 20.25], [33.97, 20.47], [33.82, 20.82], [33.47, 20.97], [33.25, 21.5], [33.35, 21.75], [33.25, 22.0], [33.35, 22.25], [33.25, 22.5], [33.35, 22.75], [33.32, 22.82], [32.97, 22.97], [32.75, 23.5], [32.85, 23.75], [32.75, 24.0], [32.85, 24.25], [32.75, 24.5], [32.97, 25.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Arabian-Peninsula"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.47, 24.97], [34.25, 25.5], [34.47, 26.03], [35.0, 26.25], [35.53, 26.03], [35.68, 25.68], [36.03, 25.53], [36.25, 25.0], [36.15, 24.75], [36.18, 24.68], [36.53, 24.53], [36.75, 24.0], [36.53, 23.47], [36.0, 23.25], [35.47, 23.47], [35.32, 23.82], [34.97, 23.97], [34.75, 24.5], [34.85, 24.75], [34.82, 24.82], [34.47, 24.97]]]]}, "2022-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.75, 24.0], [32.85, 24.25], [32.75, 24.5], [32.97, 25.03], [33.32, 25.18], [33.47, 25.53], [34.0, 25.75], [34.3, 25.63], [34.47, 26.03], [35.0, 26.25], [35.53, 26.03], [35.68, 25.68], [36.03, 25.53], [36.25, 25.0], [36.15, 24.75], [36.18, 24.68], [36.53, 24.53], [36.75, 24.0], [36.63, 23.7], [37.03, 23.53], [37.25, 23.0], [37.04, 22.5], [37.25, 22.0], [37.03, 21.47], [36.68, 21.32], [36.53, 20.97], [36.0, 20.75], [35.47, 20.97], [35.32, 21.32], [35.25, 21.35], [35.18, 21.32], [35.15, 21.25], [35.25, 21.0], [35.03, 20.47], [34.5, 20.25], [33.97, 20.47], [33.82, 20.82], [33.47, 20.97], [33.25, 21.5], [33.35, 21.75], [33.25, 22.0], [33.35, 22.25], [33.25, 22.5], [33.35, 22.75], [33.32, 22.82], [32.97, 22.97], [32.75, 23.5], [32.85, 23.75], [32.75, 24.0]]]]}, "2022-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.75, 24.0], [32.85, 24.25], [32.75, 24.5], [32.97, 25.03], [33.32, 25.18], [33.47, 25.53], [34.0, 25.75], [34.3, 25.63], [34.47, 26.03], [35.0, 26.25], [35.53, 26.03], [35.68, 25.68], [36.03, 25.53], [36.25, 25.0], [36.15, 24.75], [36.18, 24.68], [36.53, 24.53], [36.75, 24.0], [36.63, 23.7], [37.03, 23.53], [37.25, 23.0], [37.04, 22.5], [37.25, 22.0], [37.03, 21.47], [36.68, 21.32], [36.53, 20.97], [36.0, 20.75], [35.47, 20.97], [35.32, 21.32], [35.25, 21.35], [35.18, 21.32], [35.15, 21.25], [35.25, 21.0], [35.03, 20.47], [34.5, 20.25], [33.97, 20.47], [33.82, 20.82], [33.47, 20.97], [33.25, 21.5], [33.35, 21.75], [33.25, 22.0], [33.35, 22.25], [33.25, 22.5], [33.35, 22.75], [33.32, 22.82], [32.97, 22.97], [32.75, 23.5], [32.85, 23.75], [32.75, 24.0]]]]}, "2022-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.75, 24.0], [32.85, 24.25], [32.75, 24.5], [32.97, 25.03], [33.32, 25.18], [33.47, 25.53], [34.0, 25.75], [34.5, 25.54], [35.0, 25.75], [35.53, 25.53], [35.75, 25.0], [35.65, 24.75], [35.68, 24.68], [36.03, 24.53], [36.25, 24.0], [36.15, 23.75], [36.18, 23.68], [36.25, 23.65], [36.5, 23.75], [37.03, 23.53], [37.25, 23.0], [37.04, 22.5], [37.25, 22.0], [37.03, 21.47], [36.68, 21.32], [36.53, 20.97], [36.0, 20.75], [35.47, 20.97], [35.32, 21.32], [35.25, 21.35], [35.18, 21.32], [35.15, 21.25], [35.25, 21.0], [35.03, 20.47], [34.5, 20.25], [33.97, 20.47], [33.82, 20.82], [33.47, 20.97], [33.25, 21.5], [33.35, 21.75], [33.25, 22.0], [33.35, 22.25], [33.25, 22.5], [33.35, 22.75], [33.32, 22.82], [32.97, 22.97], [32.75, 23.5], [32.85, 23.75], [32.75, 24.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.541601549731638}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.3944034933222302}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.287863721211522, 26.05793741637666, 26.19570987693635, 25.802061151484963]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.635759228574727, 27.572876366020694, 27.995622459404956, 27.688322519712244]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.657499383603195, 3.20857588548918, 3.558807866566399, 3.616778424403445]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.809258570865552, 4.592317231037953, 5.541601549731638, 5.272398190184163]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2999175669922325, 1.51208908433891, 1.599415713904027, 1.5668457041261887]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3919349668973422, 1.8143721579482002, 1.9411899870430793, 2.294396309311586]}}