{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:10.333874", "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-Jun-26_to_2025-Jun-28_7.0_19.0"}, "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": 2025060002854}, "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": "June 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 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": 128919.36023329751}, "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": ["Algeria", "Mali", "Niger"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": []}, "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": 19.0}, "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": 7.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "7.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[3.32, 20.18], [3.47, 20.53], [3.82, 20.68], [3.97, 21.03], [4.5, 21.25], [5.03, 21.03], [5.18, 20.68], [5.25, 20.65], [5.5, 20.75], [5.75, 20.65], [6.0, 20.75], [6.25, 20.65], [6.5, 20.75], [7.03, 20.53], [7.18, 20.18], [7.53, 20.03], [7.68, 19.68], [8.03, 19.53], [8.25, 19.0], [8.04, 18.5], [8.25, 18.0], [8.15, 17.75], [8.25, 17.5], [8.03, 16.97], [7.5, 16.75], [7.07, 16.93], [7.18, 16.68], [7.53, 16.53], [7.75, 16.0], [7.53, 15.47], [7.0, 15.25], [6.47, 15.47], [6.32, 15.82], [6.25, 15.85], [6.0, 15.75], [5.75, 15.85], [5.5, 15.75], [4.97, 15.97], [4.82, 16.32], [4.47, 16.47], [4.25, 17.0], [4.35, 17.25], [4.32, 17.32], [3.97, 17.47], [3.75, 18.0], [3.85, 18.25], [3.82, 18.32], [3.75, 18.35], [3.5, 18.25], [2.97, 18.47], [2.75, 19.0], [2.85, 19.25], [2.75, 19.5], [2.97, 20.03], [3.32, 20.18]], [[6.68, 17.18], [6.93, 17.07], [6.82, 17.32], [6.7, 17.38], [6.65, 17.25], [6.68, 17.18]]]]}}, "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": {"2025-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.75, 19.5], [2.97, 20.03], [3.32, 20.18], [3.47, 20.53], [3.82, 20.68], [3.97, 21.03], [4.5, 21.25], [5.03, 21.03], [5.18, 20.68], [5.25, 20.65], [5.5, 20.75], [5.75, 20.65], [6.0, 20.75], [6.25, 20.65], [6.5, 20.75], [7.03, 20.53], [7.18, 20.18], [7.53, 20.03], [7.68, 19.68], [8.03, 19.53], [8.25, 19.0], [8.04, 18.5], [8.25, 18.0], [8.15, 17.75], [8.25, 17.5], [8.03, 16.97], [7.5, 16.75], [7.07, 16.93], [7.18, 16.68], [7.53, 16.53], [7.75, 16.0], [7.53, 15.47], [7.0, 15.25], [6.47, 15.47], [6.32, 15.82], [6.25, 15.85], [6.0, 15.75], [5.75, 15.85], [5.5, 15.75], [4.97, 15.97], [4.82, 16.32], [4.47, 16.47], [4.25, 17.0], [4.35, 17.25], [4.32, 17.32], [3.97, 17.47], [3.75, 18.0], [3.85, 18.25], [3.82, 18.32], [3.75, 18.35], [3.5, 18.25], [2.97, 18.47], [2.75, 19.0], [2.85, 19.25], [2.75, 19.5]], [[6.7, 17.38], [6.65, 17.25], [6.68, 17.18], [6.93, 17.07], [6.82, 17.32], [6.7, 17.38]]]]}, "2025-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.75, 19.5], [2.97, 20.03], [3.32, 20.18], [3.47, 20.53], [3.82, 20.68], [3.97, 21.03], [4.5, 21.25], [5.03, 21.03], [5.18, 20.68], [5.25, 20.65], [5.5, 20.75], [5.75, 20.65], [6.0, 20.75], [6.25, 20.65], [6.5, 20.75], [7.03, 20.53], [7.18, 20.18], [7.53, 20.03], [7.68, 19.68], [8.03, 19.53], [8.25, 19.0], [8.04, 18.5], [8.25, 18.0], [8.15, 17.75], [8.25, 17.5], [8.03, 16.97], [7.5, 16.75], [7.07, 16.93], [7.18, 16.68], [7.53, 16.53], [7.75, 16.0], [7.53, 15.47], [7.0, 15.25], [6.47, 15.47], [6.32, 15.82], [6.25, 15.85], [6.0, 15.75], [5.75, 15.85], [5.5, 15.75], [4.97, 15.97], [4.82, 16.32], [4.47, 16.47], [4.25, 17.0], [4.35, 17.25], [4.32, 17.32], [3.97, 17.47], [3.75, 18.0], [3.85, 18.25], [3.82, 18.32], [3.75, 18.35], [3.5, 18.25], [2.97, 18.47], [2.75, 19.0], [2.85, 19.25], [2.75, 19.5]], [[6.7, 17.38], [6.65, 17.25], [6.68, 17.18], [6.93, 17.07], [6.82, 17.32], [6.7, 17.38]]]]}, "2025-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.75, 19.5], [2.97, 20.03], [3.32, 20.18], [3.47, 20.53], [3.82, 20.68], [3.97, 21.03], [4.5, 21.25], [5.03, 21.03], [5.18, 20.68], [5.25, 20.65], [5.5, 20.75], [5.75, 20.65], [6.0, 20.75], [6.25, 20.65], [6.5, 20.75], [7.03, 20.53], [7.18, 20.18], [7.53, 20.03], [7.68, 19.68], [8.03, 19.53], [8.25, 19.0], [8.04, 18.5], [8.25, 18.0], [8.15, 17.75], [8.25, 17.5], [8.03, 16.97], [7.5, 16.75], [7.07, 16.93], [7.18, 16.68], [7.53, 16.53], [7.75, 16.0], [7.53, 15.47], [7.0, 15.25], [6.47, 15.47], [6.32, 15.82], [6.25, 15.85], [6.0, 15.75], [5.75, 15.85], [5.5, 15.75], [4.97, 15.97], [4.82, 16.32], [4.47, 16.47], [4.25, 17.0], [4.35, 17.25], [4.32, 17.32], [3.97, 17.47], [3.75, 18.0], [3.85, 18.25], [3.82, 18.32], [3.75, 18.35], [3.5, 18.25], [2.97, 18.47], [2.75, 19.0], [2.85, 19.25], [2.75, 19.5]], [[6.7, 17.38], [6.65, 17.25], [6.68, 17.18], [6.93, 17.07], [6.82, 17.32], [6.7, 17.38]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.7653710603362356}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.250791650147442}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.0995872035171, 37.961468459620676, 36.89126704822888]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.42660802205404, 39.26446177164718, 37.91719589233401]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.977885277817787, 2.9022194679869204, 1.8722702046376194]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.7849678476255235, 3.7653710603362356, 2.7392972513404175]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5615641217689358, 2.3515113189925585, 1.5539588188037625]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0857386404072153, 3.1913919074538963, 2.1562121734560997]}}