{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-05 05:28:51.342194", "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": "2026-Jul-25_to_2026-Jul-28_34.0_22.5"}, "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": 2026070002377}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 25 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 2026"}, "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": 54420.474361030705}, "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"]}, "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": 22.5}, "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": 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": 31.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.0, 23.25], [34.53, 23.03], [34.75, 22.5], [34.53, 21.97], [34.0, 21.75], [33.47, 21.97], [33.25, 22.5], [33.47, 23.03], [34.0, 23.25]]]]}, "2026-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, 22.5], [31.47, 23.03], [32.0, 23.25], [32.25, 23.15], [32.32, 23.18], [32.47, 23.53], [33.0, 23.75], [33.25, 23.65], [33.5, 23.75], [33.75, 23.65], [34.0, 23.75], [34.53, 23.53], [34.75, 23.0], [34.65, 22.75], [34.68, 22.68], [35.03, 22.53], [35.25, 22.0], [35.15, 21.75], [35.25, 21.5], [35.03, 20.97], [34.5, 20.75], [34.25, 20.85], [34.18, 20.82], [34.03, 20.47], [33.5, 20.25], [33.25, 20.35], [33.0, 20.25], [32.47, 20.47], [32.25, 21.0], [32.35, 21.25], [32.32, 21.32], [31.97, 21.47], [31.82, 21.82], [31.47, 21.97], [31.25, 22.5]]]]}, "2026-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, 22.5], [31.47, 23.03], [32.0, 23.25], [32.25, 23.15], [32.32, 23.18], [32.47, 23.53], [33.0, 23.75], [33.25, 23.65], [33.5, 23.75], [33.75, 23.65], [34.0, 23.75], [34.53, 23.53], [34.75, 23.0], [34.65, 22.75], [34.68, 22.68], [35.03, 22.53], [35.25, 22.0], [35.15, 21.75], [35.25, 21.5], [35.03, 20.97], [34.5, 20.75], [34.25, 20.85], [34.18, 20.82], [34.03, 20.47], [33.5, 20.25], [33.25, 20.35], [33.0, 20.25], [32.47, 20.47], [32.25, 21.0], [32.35, 21.25], [32.32, 21.32], [31.97, 21.47], [31.82, 21.82], [31.47, 21.97], [31.25, 22.5]]]]}, "2026-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, 22.5], [31.47, 23.03], [32.0, 23.25], [32.25, 23.15], [32.32, 23.18], [32.47, 23.53], [33.0, 23.75], [33.25, 23.65], [33.5, 23.75], [33.75, 23.65], [34.0, 23.75], [34.53, 23.53], [34.75, 23.0], [34.65, 22.75], [34.68, 22.68], [35.03, 22.53], [35.25, 22.0], [35.15, 21.75], [35.25, 21.5], [35.03, 20.97], [34.5, 20.75], [34.25, 20.85], [34.18, 20.82], [34.03, 20.47], [33.5, 20.25], [33.25, 20.35], [33.0, 20.25], [32.47, 20.47], [32.25, 21.0], [32.35, 21.25], [32.32, 21.32], [31.97, 21.47], [31.82, 21.82], [31.47, 21.97], [31.25, 22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.3960393811689755}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.492884336802642}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.32411600748702, 36.61832674260728, 36.83464289882727, 37.1764859517416]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.32411600748702, 37.257722473144554, 37.597783660888695, 38.14360834757491]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.854804554734585, 2.3406217007504533, 2.464664684483173, 2.706949771598934]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.854804554734585, 2.6531166441436085, 2.8531229221062517, 3.3960393811689755]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1733607577534761, 1.4871388323059365, 1.5212371997053624, 1.613675410442544]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1733607577534761, 1.7148826668208852, 1.8210509010052267, 2.002577437551769]}}