{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:26.165218", "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": "2022-Aug-03_to_2022-Aug-06_12.5_25.5"}, "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": 2022080001649}, "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": "August 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 06 2022"}, "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": 55535.91056091836}, "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": ["Libya"]}, "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": 25.5}, "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": 12.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 11.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[10.97, 26.03], [11.32, 26.18], [11.47, 26.53], [11.82, 26.68], [11.85, 26.75], [11.75, 27.0], [11.97, 27.53], [12.5, 27.75], [12.75, 27.65], [12.82, 27.68], [12.97, 28.03], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.53, 27.53], [14.75, 27.0], [14.53, 26.47], [14.18, 26.32], [14.15, 26.25], [14.25, 26.0], [14.15, 25.75], [14.25, 25.5], [14.03, 24.97], [13.5, 24.75], [13.25, 24.85], [13.18, 24.82], [13.03, 24.47], [12.5, 24.25], [12.2, 24.38], [12.03, 23.97], [11.5, 23.75], [10.97, 23.97], [10.75, 24.5], [10.85, 24.75], [10.75, 25.0], [10.85, 25.25], [10.75, 25.5], [10.97, 26.03]]]]}}, "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": {"2022-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.85, 26.25], [11.75, 26.5], [11.85, 26.75], [11.75, 27.0], [11.97, 27.53], [12.5, 27.75], [12.75, 27.65], [13.0, 27.75], [13.53, 27.53], [13.75, 27.0], [13.65, 26.75], [13.75, 26.5], [13.65, 26.25], [13.75, 26.0], [13.65, 25.75], [13.75, 25.5], [13.53, 24.97], [13.0, 24.75], [12.75, 24.85], [12.5, 24.75], [12.25, 24.85], [12.0, 24.75], [11.47, 24.97], [11.25, 25.5], [11.47, 26.03], [11.82, 26.18], [11.85, 26.25]]]]}, "2022-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.75, 25.0], [10.85, 25.25], [10.75, 25.5], [10.97, 26.03], [11.32, 26.18], [11.47, 26.53], [11.82, 26.68], [11.85, 26.75], [11.75, 27.0], [11.97, 27.53], [12.5, 27.75], [12.75, 27.65], [12.82, 27.68], [12.97, 28.03], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.53, 27.53], [14.75, 27.0], [14.53, 26.47], [14.18, 26.32], [14.15, 26.25], [14.25, 26.0], [14.15, 25.75], [14.25, 25.5], [14.03, 24.97], [13.5, 24.75], [13.25, 24.85], [13.18, 24.82], [13.03, 24.47], [12.5, 24.25], [12.2, 24.38], [12.03, 23.97], [11.5, 23.75], [10.97, 23.97], [10.75, 24.5], [10.85, 24.75], [10.75, 25.0]]]]}, "2022-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.75, 25.0], [10.85, 25.25], [10.75, 25.5], [10.97, 26.03], [11.32, 26.18], [11.47, 26.53], [11.82, 26.68], [11.85, 26.75], [11.75, 27.0], [11.97, 27.53], [12.5, 27.75], [12.75, 27.65], [12.82, 27.68], [12.97, 28.03], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.53, 27.53], [14.75, 27.0], [14.53, 26.47], [14.18, 26.32], [14.15, 26.25], [14.25, 26.0], [14.15, 25.75], [14.25, 25.5], [14.03, 24.97], [13.5, 24.75], [13.25, 24.85], [13.18, 24.82], [13.03, 24.47], [12.5, 24.25], [12.2, 24.38], [12.03, 23.97], [11.5, 23.75], [10.97, 23.97], [10.75, 24.5], [10.85, 24.75], [10.75, 25.0]]]]}, "2022-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.75, 25.0], [10.85, 25.25], [10.75, 25.5], [10.97, 26.03], [11.32, 26.18], [11.47, 26.53], [12.0, 26.75], [12.25, 26.65], [12.5, 26.75], [12.75, 26.65], [12.82, 26.68], [12.85, 26.75], [12.75, 27.0], [12.85, 27.25], [12.75, 27.5], [12.97, 28.03], [13.5, 28.25], [14.03, 28.03], [14.18, 27.68], [14.53, 27.53], [14.75, 27.0], [14.53, 26.47], [14.18, 26.32], [14.15, 26.25], [14.25, 26.0], [14.15, 25.75], [14.25, 25.5], [14.03, 24.97], [13.5, 24.75], [13.25, 24.85], [13.18, 24.82], [13.03, 24.47], [12.5, 24.25], [12.2, 24.38], [12.03, 23.97], [11.5, 23.75], [10.97, 23.97], [10.75, 24.5], [10.85, 24.75], [10.75, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.215692031079811}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.0688054152608077}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.20254477858913, 34.26153281384609, 34.70993352522595, 34.86647264870521]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.11962833862367, 35.88255986382245, 35.52793319580144, 35.48602580706631]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6895017871798106, 2.7591076296246286, 3.2110025113120373, 3.491539568037556]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.083207439661635, 3.555332391927834, 3.9021583878216006, 4.215692031079811]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3580614461385174, 1.3890543183805801, 1.582583386447864, 1.703153075885177]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4759505432695559, 1.682777492204925, 1.8945274356930166, 2.0038499214487944]}}