{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:34.958462", "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-Jul-11_to_2025-Jul-13_353.0_20.5"}, "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": 2025070002003}, "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": "July 11 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 13 2025"}, "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": 101382.74769834374}, "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": ["Mauritania"]}, "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": 20.5}, "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": 353.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-11.53, 20.53], [-11.18, 20.68], [-11.03, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.18, 21.18], [-10.03, 21.53], [-9.68, 21.68], [-9.53, 22.03], [-9.18, 22.18], [-9.03, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.47, 22.53], [-7.32, 22.18], [-6.97, 22.03], [-6.82, 21.68], [-6.47, 21.53], [-6.25, 21.0], [-6.35, 20.75], [-6.25, 20.5], [-6.47, 19.97], [-7.0, 19.75], [-7.25, 19.85], [-7.32, 19.82], [-7.47, 19.47], [-7.82, 19.32], [-7.97, 18.97], [-8.32, 18.82], [-8.47, 18.47], [-9.0, 18.25], [-9.25, 18.35], [-9.5, 18.25], [-9.75, 18.35], [-10.0, 18.25], [-10.53, 18.47], [-10.68, 18.82], [-11.03, 18.97], [-11.18, 19.32], [-11.53, 19.47], [-11.75, 20.0], [-11.53, 20.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.529999999999973, 19.47], [-11.75, 20.0], [-11.529999999999973, 20.53], [-11.180000000000007, 20.68], [-11.029999999999973, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.180000000000007, 21.18], [-10.029999999999973, 21.53], [-9.680000000000007, 21.68], [-9.529999999999973, 22.03], [-9.180000000000007, 22.18], [-9.029999999999973, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.470000000000027, 22.53], [-7.319999999999993, 22.18], [-6.970000000000027, 22.03], [-6.819999999999993, 21.68], [-6.470000000000027, 21.53], [-6.25, 21.0], [-6.350000000000023, 20.75], [-6.25, 20.5], [-6.470000000000027, 19.97], [-7.0, 19.75], [-7.25, 19.85], [-7.319999999999993, 19.82], [-7.470000000000027, 19.47], [-7.819999999999993, 19.32], [-7.970000000000027, 18.97], [-8.319999999999993, 18.82], [-8.470000000000027, 18.47], [-9.0, 18.25], [-9.25, 18.35], [-9.5, 18.25], [-9.75, 18.35], [-10.0, 18.25], [-10.529999999999973, 18.47], [-10.680000000000007, 18.82], [-11.029999999999973, 18.97], [-11.180000000000007, 19.32], [-11.529999999999973, 19.47]]]]}, "2025-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.529999999999973, 19.47], [-11.75, 20.0], [-11.529999999999973, 20.53], [-11.180000000000007, 20.68], [-11.029999999999973, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.180000000000007, 21.18], [-10.029999999999973, 21.53], [-9.680000000000007, 21.68], [-9.529999999999973, 22.03], [-9.180000000000007, 22.18], [-9.029999999999973, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.470000000000027, 22.53], [-7.319999999999993, 22.18], [-6.970000000000027, 22.03], [-6.819999999999993, 21.68], [-6.470000000000027, 21.53], [-6.25, 21.0], [-6.350000000000023, 20.75], [-6.25, 20.5], [-6.470000000000027, 19.97], [-7.0, 19.75], [-7.25, 19.85], [-7.319999999999993, 19.82], [-7.470000000000027, 19.47], [-7.819999999999993, 19.32], [-7.970000000000027, 18.97], [-8.319999999999993, 18.82], [-8.470000000000027, 18.47], [-9.0, 18.25], [-9.25, 18.35], [-9.5, 18.25], [-9.75, 18.35], [-10.0, 18.25], [-10.529999999999973, 18.47], [-10.680000000000007, 18.82], [-11.029999999999973, 18.97], [-11.180000000000007, 19.32], [-11.529999999999973, 19.47]]]]}, "2025-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.529999999999973, 19.47], [-11.75, 20.0], [-11.529999999999973, 20.53], [-11.180000000000007, 20.68], [-11.029999999999973, 21.03], [-10.5, 21.25], [-10.25, 21.15], [-10.180000000000007, 21.18], [-10.029999999999973, 21.53], [-9.680000000000007, 21.68], [-9.529999999999973, 22.03], [-9.180000000000007, 22.18], [-9.029999999999973, 22.53], [-8.5, 22.75], [-8.25, 22.65], [-8.0, 22.75], [-7.470000000000027, 22.53], [-7.319999999999993, 22.18], [-6.970000000000027, 22.03], [-6.819999999999993, 21.68], [-6.470000000000027, 21.53], [-6.25, 21.0], [-6.350000000000023, 20.75], [-6.25, 20.5], [-6.470000000000027, 19.97], [-7.0, 19.75], [-7.25, 19.85], [-7.319999999999993, 19.82], [-7.470000000000027, 19.47], [-7.819999999999993, 19.32], [-7.970000000000027, 18.97], [-8.319999999999993, 18.82], [-8.470000000000027, 18.47], [-9.0, 18.25], [-9.25, 18.35], [-9.5, 18.25], [-9.75, 18.35], [-10.0, 18.25], [-10.529999999999973, 18.47], [-10.680000000000007, 18.82], [-11.029999999999973, 18.97], [-11.180000000000007, 19.32], [-11.529999999999973, 19.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.135738852398845}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.7053296794712915}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.4081059410459, 37.85319526309064, 37.03556863693967]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [39.444338734944665, 40.019385274251306, 38.47996037801107]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7324993476181003, 3.129007815148514, 2.25448187564726]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.853405194654215, 4.135738852398845, 3.162923137721407]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0823261713034746, 2.3226996109145928, 1.6572344837005364]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.3765292324908867, 3.660679748274073, 2.3484032809964677]}}