{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:10.154620", "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-Apr-05_to_2025-Apr-08_27.5_26.0"}, "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": 2025040001108}, "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": "April 05 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 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": 75074.5946171548}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": []}, "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": 26.0}, "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": 27.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 26.0], [26.97, 26.53], [27.5, 26.75], [28.03, 26.53], [28.25, 26.0], [28.15, 25.75], [28.25, 25.5], [28.15, 25.25], [28.25, 25.0], [28.03, 24.47], [27.5, 24.25], [27.25, 24.35], [27.0, 24.25], [26.47, 24.47], [26.25, 25.0], [26.47, 25.53], [26.82, 25.68], [26.85, 25.75], [26.75, 26.0]]]]}, "2025-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 25.0], [26.47, 25.53], [26.82, 25.68], [26.85, 25.75], [26.75, 26.0], [26.97, 26.53], [27.5, 26.75], [27.75, 26.65], [27.82, 26.68], [27.97, 27.03], [28.32, 27.18], [28.47, 27.53], [29.0, 27.75], [29.25, 27.65], [29.5, 27.75], [29.75, 27.65], [29.82, 27.68], [29.97, 28.03], [30.5, 28.25], [31.03, 28.03], [31.25, 27.5], [31.15, 27.25], [31.25, 27.0], [31.15, 26.75], [31.25, 26.5], [31.03, 25.97], [30.68, 25.82], [30.53, 25.47], [30.0, 25.25], [29.75, 25.35], [29.68, 25.32], [29.53, 24.97], [29.18, 24.82], [29.03, 24.47], [28.5, 24.25], [28.25, 24.35], [28.18, 24.32], [28.03, 23.97], [27.5, 23.75], [27.25, 23.85], [27.18, 23.82], [27.03, 23.47], [26.5, 23.25], [25.97, 23.47], [25.75, 24.0], [25.97, 24.53], [26.32, 24.68], [26.35, 24.75], [26.25, 25.0]]]]}, "2025-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 25.0], [26.47, 25.53], [26.82, 25.68], [26.85, 25.75], [26.75, 26.0], [26.97, 26.53], [27.5, 26.75], [27.75, 26.65], [27.82, 26.68], [27.97, 27.03], [28.32, 27.18], [28.47, 27.53], [29.0, 27.75], [29.25, 27.65], [29.5, 27.75], [29.75, 27.65], [29.82, 27.68], [29.97, 28.03], [30.5, 28.25], [31.03, 28.03], [31.25, 27.5], [31.15, 27.25], [31.25, 27.0], [31.15, 26.75], [31.25, 26.5], [31.03, 25.97], [30.68, 25.82], [30.53, 25.47], [30.0, 25.25], [29.75, 25.35], [29.68, 25.32], [29.53, 24.97], [29.18, 24.82], [29.03, 24.47], [28.5, 24.25], [28.25, 24.35], [28.18, 24.32], [28.03, 23.97], [27.5, 23.75], [27.25, 23.85], [27.18, 23.82], [27.03, 23.47], [26.5, 23.25], [25.97, 23.47], [25.75, 24.0], [25.97, 24.53], [26.32, 24.68], [26.35, 24.75], [26.25, 25.0]]]]}, "2025-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 25.0], [26.47, 25.53], [26.82, 25.68], [26.85, 25.75], [26.75, 26.0], [26.97, 26.53], [27.5, 26.75], [27.75, 26.65], [27.82, 26.68], [27.97, 27.03], [28.32, 27.18], [28.47, 27.53], [29.0, 27.75], [29.25, 27.65], [29.5, 27.75], [29.75, 27.65], [29.82, 27.68], [29.97, 28.03], [30.5, 28.25], [31.03, 28.03], [31.25, 27.5], [31.15, 27.25], [31.25, 27.0], [31.15, 26.75], [31.25, 26.5], [31.03, 25.97], [30.68, 25.82], [30.53, 25.47], [30.0, 25.25], [29.75, 25.35], [29.68, 25.32], [29.53, 24.97], [29.18, 24.82], [29.03, 24.47], [28.5, 24.25], [28.25, 24.35], [28.18, 24.32], [28.03, 23.97], [27.5, 23.75], [27.25, 23.85], [27.18, 23.82], [27.03, 23.47], [26.5, 23.25], [25.97, 23.47], [25.75, 24.0], [25.97, 24.53], [26.32, 24.68], [26.35, 24.75], [26.25, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.696825904244179}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.887455554703299}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.31381759643557, 27.260602098629818, 27.427972600489454, 31.19057282812804]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.79208908081057, 28.650579071044945, 28.946623738606775, 32.3801043192546]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.502650366026145, 5.786331478171786, 5.747471103441148, 9.33372040674543]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.7172422543952734, 6.876987181513471, 6.572749715652833, 10.696825904244179]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5573820964002698, 1.6705931264016434, 1.6401390827609672, 2.6466890055654955]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6044481485274227, 2.0572682229073656, 1.875072744473074, 3.0888081758107244]}}