{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:02.243087", "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-Jul-26_to_2022-Jul-31_344.0_10.5"}, "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": 2022070002867}, "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 26 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 51753.637542864104}, "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"]}, "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": ["Atlantic Ocean"]}, "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": 10.5}, "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": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 342.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 346.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-13.97, 8.97], [-14.5, 8.75], [-15.0, 8.96], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.25, 8.85], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.53, 8.97], [-17.68, 9.32], [-18.03, 9.47], [-18.25, 10.0], [-18.03, 10.53], [-17.5, 10.75], [-17.25, 10.65], [-17.18, 10.68], [-17.03, 11.03], [-16.5, 11.25], [-16.25, 11.15], [-16.0, 11.25], [-15.75, 11.15], [-15.5, 11.25], [-15.25, 11.15], [-15.0, 11.25], [-14.47, 11.03], [-14.32, 10.68], [-14.25, 10.65], [-14.0, 10.75], [-13.47, 10.53], [-13.25, 10.0], [-13.47, 9.47], [-13.82, 9.32], [-13.97, 8.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.029999999999973, 9.47], [-18.25, 10.0], [-18.029999999999973, 10.53], [-17.5, 10.75], [-17.25, 10.65], [-17.180000000000007, 10.68], [-17.029999999999973, 11.03], [-16.5, 11.25], [-16.25, 11.15], [-16.0, 11.25], [-15.75, 11.15], [-15.5, 11.25], [-15.25, 11.15], [-15.0, 11.25], [-14.470000000000027, 11.03], [-14.319999999999993, 10.68], [-14.25, 10.65], [-14.0, 10.75], [-13.470000000000027, 10.53], [-13.25, 10.0], [-13.470000000000027, 9.47], [-14.0, 9.25], [-14.25, 9.35], [-14.5, 9.25], [-14.75, 9.35], [-15.0, 9.25], [-15.25, 9.35], [-15.5, 9.25], [-15.75, 9.35], [-15.819999999999993, 9.32], [-15.970000000000027, 8.97], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.529999999999973, 8.97], [-17.680000000000007, 9.32], [-18.029999999999973, 9.47]]]]}, "2022-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.029999999999973, 9.47], [-18.25, 10.0], [-18.029999999999973, 10.53], [-17.5, 10.75], [-17.25, 10.65], [-17.180000000000007, 10.68], [-17.029999999999973, 11.03], [-16.5, 11.25], [-16.25, 11.15], [-16.0, 11.25], [-15.75, 11.15], [-15.5, 11.25], [-15.25, 11.15], [-15.0, 11.25], [-14.470000000000027, 11.03], [-14.319999999999993, 10.68], [-14.25, 10.65], [-14.0, 10.75], [-13.470000000000027, 10.53], [-13.25, 10.0], [-13.470000000000027, 9.47], [-14.0, 9.25], [-14.25, 9.35], [-14.5, 9.25], [-14.75, 9.35], [-15.0, 9.25], [-15.25, 9.35], [-15.5, 9.25], [-15.75, 9.35], [-15.819999999999993, 9.32], [-15.970000000000027, 8.97], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.529999999999973, 8.97], [-17.680000000000007, 9.32], [-18.029999999999973, 9.47]]]]}, "2022-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.029999999999973, 9.47], [-18.25, 10.0], [-18.029999999999973, 10.53], [-17.5, 10.75], [-17.25, 10.65], [-17.180000000000007, 10.68], [-17.029999999999973, 11.03], [-16.5, 11.25], [-16.25, 11.15], [-16.0, 11.25], [-15.75, 11.15], [-15.5, 11.25], [-15.25, 11.15], [-15.0, 11.25], [-14.470000000000027, 11.03], [-14.319999999999993, 10.68], [-14.25, 10.65], [-14.0, 10.75], [-13.470000000000027, 10.53], [-13.25, 10.0], [-13.470000000000027, 9.47], [-14.0, 9.25], [-14.25, 9.35], [-14.5, 9.25], [-14.75, 9.35], [-14.819999999999993, 9.32], [-14.970000000000027, 8.97], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75], [-16.25, 8.85], [-16.5, 8.75], [-16.75, 8.85], [-17.0, 8.75], [-17.529999999999973, 8.97], [-17.680000000000007, 9.32], [-18.029999999999973, 9.47]]]]}, "2022-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.0, 8.75], [-16.529999999999973, 8.97], [-16.75, 9.5], [-16.529999999999973, 10.03], [-16.0, 10.25], [-15.75, 10.15], [-15.5, 10.25], [-15.0, 10.04], [-14.5, 10.25], [-13.970000000000027, 10.03], [-13.75, 9.5], [-13.970000000000027, 8.97], [-14.5, 8.75], [-15.0, 8.96], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75]]]]}, "2022-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.0, 8.75], [-16.529999999999973, 8.97], [-16.75, 9.5], [-16.529999999999973, 10.03], [-16.0, 10.25], [-15.75, 10.15], [-15.5, 10.25], [-15.0, 10.04], [-14.5, 10.25], [-13.970000000000027, 10.03], [-13.75, 9.5], [-13.970000000000027, 8.97], [-14.5, 8.75], [-15.0, 8.96], [-15.5, 8.75], [-15.75, 8.85], [-16.0, 8.75]]]]}, "2022-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.029999999999973, 10.03], [-14.5, 10.25], [-13.970000000000027, 10.03], [-13.75, 9.5], [-13.970000000000027, 8.97], [-14.5, 8.75], [-15.029999999999973, 8.97], [-15.25, 9.5], [-15.029999999999973, 10.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.0173049169590058}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8182391718719028}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.642515836197674, 26.60773210102934, 26.633161425851426, 26.423524247686146, 26.515225772019107, 26.410639671368926]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.768550559109258, 26.834860303335915, 26.895590325182468, 26.45746082003626, 26.55967486479534, 26.410639671368926]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8255226547685603, 0.8225599262285316, 0.8512418334740204, 0.6822104857805584, 0.7541925125178371, 0.7279633010282396]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9053408164726875, 0.9501226788214581, 1.0173049169590058, 0.6971672233298705, 0.7739471546916548, 0.7279633010282396]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.667921653399967, 1.7138082933571588, 1.7297132788017193, 1.4678771546568656, 1.6426945993140176, 1.6800260112960435]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8885718336980453, 1.885021155821651, 1.9588614406534701, 1.5501899572441866, 1.7434771705437415, 1.6800260112960435]}}