{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:32.283271", "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": "2015-Jul-20_to_2015-Jul-24_348.5_13.0"}, "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": 2015070002615}, "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 20 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2015"}, "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": 51408.93143164375}, "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": ["Guinea", "Mali", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "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": 13.0}, "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": 348.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.25, 12.0], [-14.03, 12.53], [-13.5, 12.75], [-13.25, 12.65], [-13.18, 12.68], [-13.03, 13.03], [-12.5, 13.25], [-12.25, 13.15], [-12.18, 13.18], [-12.03, 13.53], [-11.5, 13.75], [-11.25, 13.65], [-11.0, 13.75], [-10.47, 13.53], [-10.25, 13.0], [-10.46, 12.5], [-10.32, 12.18], [-9.97, 12.03], [-9.75, 11.5], [-9.97, 10.97], [-10.32, 10.82], [-10.47, 10.47], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.25, 10.85], [-12.5, 10.75], [-12.75, 10.85], [-13.0, 10.75], [-13.53, 10.97], [-13.68, 11.32], [-14.03, 11.47], [-14.25, 12.0]]]]}, "2015-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.25, 12.0], [-14.03, 12.53], [-13.5, 12.75], [-13.25, 12.65], [-13.18, 12.68], [-13.03, 13.03], [-12.5, 13.25], [-12.25, 13.15], [-12.18, 13.18], [-12.03, 13.53], [-11.5, 13.75], [-11.25, 13.65], [-11.0, 13.75], [-10.47, 13.53], [-10.25, 13.0], [-10.46, 12.5], [-10.32, 12.18], [-9.97, 12.03], [-9.75, 11.5], [-9.97, 10.97], [-10.32, 10.82], [-10.47, 10.47], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.25, 10.85], [-12.5, 10.75], [-12.75, 10.85], [-13.0, 10.75], [-13.53, 10.97], [-13.68, 11.32], [-14.03, 11.47], [-14.25, 12.0]]]]}, "2015-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.25, 12.0], [-14.03, 12.53], [-13.5, 12.75], [-13.25, 12.65], [-13.18, 12.68], [-13.03, 13.03], [-12.5, 13.25], [-12.25, 13.15], [-12.18, 13.18], [-12.03, 13.53], [-11.5, 13.75], [-11.25, 13.65], [-11.0, 13.75], [-10.47, 13.53], [-10.25, 13.0], [-10.46, 12.5], [-10.32, 12.18], [-9.97, 12.03], [-9.75, 11.5], [-9.97, 10.97], [-10.32, 10.82], [-10.47, 10.47], [-11.0, 10.25], [-11.53, 10.47], [-11.68, 10.82], [-11.75, 10.85], [-12.0, 10.75], [-12.25, 10.85], [-12.5, 10.75], [-12.75, 10.85], [-13.0, 10.75], [-13.53, 10.97], [-13.68, 11.32], [-14.03, 11.47], [-14.25, 12.0]]]]}, "2015-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 13.75], [-10.97, 13.53], [-10.75, 13.0], [-10.97, 12.47], [-11.5, 12.25], [-12.03, 12.47], [-12.25, 13.0], [-12.03, 13.53], [-11.5, 13.75]]]]}, "2015-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.5, 13.75], [-10.97, 13.53], [-10.75, 13.0], [-10.97, 12.47], [-11.5, 12.25], [-12.03, 12.47], [-12.25, 13.0], [-12.03, 13.53], [-11.5, 13.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.746732580519563}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.672691800118365}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.826496574114913, 26.981261479311, 26.576794115731218, 29.150143733948767, 30.142075453616144]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.42752509326175, 30.452246568575504, 29.364858377521387, 29.150143733948767, 30.142075453616144]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.611831258845307, 1.8394121924517455, 1.5027002999503205, 1.68888905454844, 2.746732580519563]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0593519155981994, 2.73733941248247, 1.846949238052332, 1.68888905454844, 2.746732580519563]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6528301502046236, 1.8557818532832366, 1.547062228182292, 1.3783267540563136, 2.1680343258573016]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.998166657878284, 2.285030261266283, 1.8663896561642683, 1.3783267540563136, 2.1680343258573016]}}