{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:41.304029", "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-18_to_2025-Jul-22_16.5_1.0"}, "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": 2025070002406}, "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 18 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 22 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 55629.63366557888}, "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": ["Congo", "Congo, The Democratic Republic of the", "Gabon"]}, "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": 1.0}, "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": 16.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "16.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[18.5, -0.25], [17.97, -0.03], [17.82, 0.32], [17.75, 0.35], [17.5, 0.25], [17.25, 0.35], [17.18, 0.32], [17.03, -0.03], [16.5, -0.25], [16.0, -0.04], [15.5, -0.25], [14.97, -0.03], [14.82, 0.32], [14.75, 0.35], [14.5, 0.25], [14.25, 0.35], [14.0, 0.25], [13.47, 0.47], [13.25, 1.0], [13.35, 1.25], [13.25, 1.5], [13.47, 2.03], [14.0, 2.25], [14.25, 2.15], [14.5, 2.25], [15.0, 2.04], [15.5, 2.25], [15.75, 2.15], [16.0, 2.25], [16.53, 2.03], [16.68, 1.68], [16.75, 1.65], [17.0, 1.75], [17.25, 1.65], [17.5, 1.75], [17.75, 1.65], [18.0, 1.75], [18.25, 1.65], [18.5, 1.75], [18.75, 1.65], [19.0, 1.75], [19.53, 1.53], [19.75, 1.0], [19.53, 0.47], [19.18, 0.32], [19.03, -0.03], [18.5, -0.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 1.5], [13.47, 2.03], [14.0, 2.25], [14.25, 2.15], [14.5, 2.25], [15.0, 2.04], [15.5, 2.25], [15.75, 2.15], [16.0, 2.25], [16.53, 2.03], [16.68, 1.68], [17.03, 1.53], [17.25, 1.0], [17.15, 0.75], [17.25, 0.5], [17.03, -0.03], [16.5, -0.25], [15.97, -0.03], [15.8, 0.37], [15.5, 0.25], [15.25, 0.35], [15.0, 0.25], [14.75, 0.35], [14.5, 0.25], [14.25, 0.35], [14.0, 0.25], [13.47, 0.47], [13.25, 1.0], [13.35, 1.25], [13.25, 1.5]]]]}, "2025-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 1.5], [13.47, 2.03], [14.0, 2.25], [14.25, 2.15], [14.5, 2.25], [15.0, 2.04], [15.5, 2.25], [15.75, 2.15], [16.0, 2.25], [16.53, 2.03], [16.68, 1.68], [16.75, 1.65], [17.0, 1.75], [17.25, 1.65], [17.5, 1.75], [17.75, 1.65], [18.0, 1.75], [18.25, 1.65], [18.5, 1.75], [18.75, 1.65], [19.0, 1.75], [19.53, 1.53], [19.75, 1.0], [19.53, 0.47], [19.18, 0.32], [19.03, -0.03], [18.5, -0.25], [17.97, -0.03], [17.82, 0.32], [17.75, 0.35], [17.5, 0.25], [17.25, 0.35], [17.18, 0.32], [17.03, -0.03], [16.5, -0.25], [16.0, -0.04], [15.5, -0.25], [14.97, -0.03], [14.82, 0.32], [14.75, 0.35], [14.5, 0.25], [14.25, 0.35], [14.0, 0.25], [13.47, 0.47], [13.25, 1.0], [13.35, 1.25], [13.25, 1.5]]]]}, "2025-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, 1.5], [13.47, 2.03], [14.0, 2.25], [14.25, 2.15], [14.5, 2.25], [15.0, 2.04], [15.5, 2.25], [15.75, 2.15], [16.0, 2.25], [16.53, 2.03], [16.68, 1.68], [16.75, 1.65], [17.0, 1.75], [17.25, 1.65], [17.5, 1.75], [17.75, 1.65], [18.0, 1.75], [18.25, 1.65], [18.5, 1.75], [18.75, 1.65], [19.0, 1.75], [19.53, 1.53], [19.75, 1.0], [19.53, 0.47], [19.18, 0.32], [19.03, -0.03], [18.5, -0.25], [17.97, -0.03], [17.82, 0.32], [17.75, 0.35], [17.5, 0.25], [17.25, 0.35], [17.18, 0.32], [17.03, -0.03], [16.5, -0.25], [16.0, -0.04], [15.5, -0.25], [14.97, -0.03], [14.82, 0.32], [14.75, 0.35], [14.5, 0.25], [14.25, 0.35], [14.0, 0.25], [13.47, 0.47], [13.25, 1.0], [13.35, 1.25], [13.25, 1.5]]]]}, "2025-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.47, 0.47], [14.25, 1.0], [14.47, 1.53], [15.0, 1.75], [15.25, 1.65], [15.5, 1.75], [15.75, 1.65], [16.0, 1.75], [16.25, 1.65], [16.5, 1.75], [16.75, 1.65], [17.0, 1.75], [17.25, 1.65], [17.5, 1.75], [17.75, 1.65], [18.0, 1.75], [18.25, 1.65], [18.5, 1.75], [18.75, 1.65], [19.0, 1.75], [19.53, 1.53], [19.75, 1.0], [19.53, 0.47], [19.18, 0.32], [19.03, -0.03], [18.5, -0.25], [17.97, -0.03], [17.82, 0.32], [17.75, 0.35], [17.5, 0.25], [17.25, 0.35], [17.18, 0.32], [17.03, -0.03], [16.5, -0.25], [16.0, -0.04], [15.5, -0.25], [14.97, -0.03], [14.82, 0.32], [14.47, 0.47]]]]}, "2025-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.97, 1.03], [18.5, 1.25], [19.03, 1.03], [19.25, 0.5], [19.03, -0.03], [18.5, -0.25], [17.97, -0.03], [17.75, 0.5], [17.97, 1.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8628899824212226}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2790640037234708}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.918993631998774, 25.62622985839846, 25.33678588867184, 25.70682381523983, 25.98572692871096]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.80516713460287, 26.57825622558596, 26.541701253255212, 26.411074574788415, 25.98572692871096]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0622441170897274, 1.4797741110246692, 1.2167853997068947, 1.2579897259728388, 1.2083871439452878]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2668635885455615, 1.8628899824212226, 1.586067047252925, 1.4803586166444802, 1.2083871439452878]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4031171703022784, 1.8205772967485936, 1.5457511642952921, 1.5212956361185526, 1.3882755052473146]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5688590940895866, 2.335236410449368, 1.8715361899811798, 1.6968728044330992, 1.3882755052473146]}}