{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:42.110604", "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": "2024-Aug-15_to_2024-Aug-19_13.5_-0.5"}, "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": 2024080002018}, "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 15 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 19 2024"}, "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": 52534.43685805247}, "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", "Gabon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -0.5}, "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": 13.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.5\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": 13.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[10.97, 0.03], [11.5, 0.25], [11.75, 0.15], [12.0, 0.25], [12.25, 0.15], [12.5, 0.25], [12.75, 0.15], [13.0, 0.25], [13.25, 0.15], [13.5, 0.25], [14.03, 0.03], [14.25, -0.5], [14.15, -0.75], [14.25, -1.0], [14.03, -1.53], [13.68, -1.68], [13.65, -1.75], [13.75, -2.0], [13.53, -2.53], [13.18, -2.68], [13.03, -3.03], [12.5, -3.25], [11.97, -3.03], [11.82, -2.68], [11.47, -2.53], [11.32, -2.18], [10.97, -2.03], [10.75, -1.5], [10.85, -1.25], [10.75, -1.0], [10.85, -0.75], [10.75, -0.5], [10.97, 0.03]]]]}}, "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": {"2024-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.5, 0.25], [14.03, 0.03], [14.25, -0.5], [14.15, -0.75], [14.25, -1.0], [14.03, -1.53], [13.5, -1.75], [12.97, -1.53], [12.75, -1.0], [12.85, -0.75], [12.75, -0.5], [12.97, 0.03], [13.5, 0.25]]], [[[12.0, -1.25], [11.47, -1.03], [11.25, -0.5], [11.47, 0.03], [12.0, 0.25], [12.53, 0.03], [12.75, -0.5], [12.53, -1.03], [12.0, -1.25]]]]}, "2024-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.75, -1.0], [10.85, -0.75], [10.75, -0.5], [10.97, 0.03], [11.5, 0.25], [11.75, 0.15], [12.0, 0.25], [12.25, 0.15], [12.5, 0.25], [12.75, 0.15], [13.0, 0.25], [13.25, 0.15], [13.5, 0.25], [14.03, 0.03], [14.25, -0.5], [14.15, -0.75], [14.25, -1.0], [14.03, -1.53], [13.68, -1.68], [13.65, -1.75], [13.75, -2.0], [13.53, -2.53], [13.18, -2.68], [13.03, -3.03], [12.5, -3.25], [11.97, -3.03], [11.82, -2.68], [11.47, -2.53], [11.32, -2.18], [10.97, -2.03], [10.75, -1.5], [10.85, -1.25], [10.75, -1.0]]]]}, "2024-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.75, -1.0], [10.85, -0.75], [10.75, -0.5], [10.97, 0.03], [11.5, 0.25], [11.75, 0.15], [12.0, 0.25], [12.25, 0.15], [12.5, 0.25], [12.75, 0.15], [13.0, 0.25], [13.25, 0.15], [13.5, 0.25], [14.03, 0.03], [14.25, -0.5], [14.15, -0.75], [14.25, -1.0], [14.03, -1.53], [13.68, -1.68], [13.65, -1.75], [13.75, -2.0], [13.53, -2.53], [13.18, -2.68], [13.03, -3.03], [12.5, -3.25], [11.97, -3.03], [11.82, -2.68], [11.47, -2.53], [11.32, -2.18], [10.97, -2.03], [10.75, -1.5], [10.85, -1.25], [10.75, -1.0]]]]}, "2024-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.75, -1.0], [10.85, -0.75], [10.75, -0.5], [10.97, 0.03], [11.5, 0.25], [11.75, 0.15], [12.0, 0.25], [12.25, 0.15], [12.5, 0.25], [12.75, 0.15], [13.0, 0.25], [13.25, 0.15], [13.5, 0.25], [14.03, 0.03], [14.25, -0.5], [14.15, -0.75], [14.25, -1.0], [14.03, -1.53], [13.68, -1.68], [13.65, -1.75], [13.75, -2.0], [13.53, -2.53], [13.18, -2.68], [13.03, -3.03], [12.5, -3.25], [11.97, -3.03], [11.82, -2.68], [11.47, -2.53], [11.32, -2.18], [10.97, -2.03], [10.75, -1.5], [10.85, -1.25], [10.75, -1.0]]]]}, "2024-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.97, 0.03], [13.5, 0.25], [14.03, 0.03], [14.25, -0.5], [14.03, -1.03], [13.5, -1.25], [12.97, -1.03], [12.75, -0.5], [12.97, 0.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.8118109649379335}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5055626604089154}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.679242822017727, 24.65055945751743, 24.730859766437675, 25.144389990258446, 25.291168461567054]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.926106604964957, 26.834347958587273, 26.126910397507288, 27.55753944718532, 25.291168461567054]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.23362271691506, 1.3679493973733823, 1.4230956001986517, 1.797474058948119, 1.1002542109025626]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4100435762302936, 2.150097217041889, 1.6835840796124444, 2.8118109649379335, 1.1002542109025626]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3580397668466497, 1.6712017148234768, 1.8104405768032967, 2.3573410163511284, 1.3890601423679458]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5435363577691772, 2.387086537435379, 2.229033828401547, 3.3497625908467845, 1.3890601423679458]}}