{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:39.866458", "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-10_to_2024-Aug-13_354.0_18.5"}, "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": 2024080001758}, "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 10 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2024"}, "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": 73020.09839438164}, "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": ["Mali", "Mauritania"]}, "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": 18.5}, "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": 354.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "354.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 356.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-10.03, 20.53], [-9.5, 20.75], [-8.97, 20.53], [-8.82, 20.18], [-8.75, 20.15], [-8.5, 20.25], [-8.0, 20.04], [-7.5, 20.25], [-7.2, 20.12], [-7.03, 20.53], [-6.5, 20.75], [-6.25, 20.65], [-6.0, 20.75], [-5.47, 20.53], [-5.25, 20.0], [-5.37, 19.7], [-5.25, 19.65], [-5.18, 19.68], [-5.03, 20.03], [-4.5, 20.25], [-4.25, 20.15], [-4.0, 20.25], [-3.47, 20.03], [-3.25, 19.5], [-3.47, 18.97], [-4.0, 18.75], [-4.25, 18.85], [-4.32, 18.82], [-4.47, 18.47], [-5.0, 18.25], [-5.25, 18.35], [-5.32, 18.32], [-5.47, 17.97], [-6.0, 17.75], [-6.25, 17.85], [-6.5, 17.75], [-6.75, 17.85], [-7.0, 17.75], [-7.5, 17.96], [-8.0, 17.75], [-8.25, 17.85], [-8.5, 17.75], [-8.75, 17.85], [-9.0, 17.75], [-9.25, 17.85], [-9.5, 17.75], [-10.03, 17.97], [-10.25, 18.5], [-10.15, 18.75], [-10.25, 19.0], [-10.04, 19.5], [-10.25, 20.0], [-10.03, 20.53]]]]}}, "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": {"2024-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.5, 18.75], [-5.029999999999973, 18.97], [-5.25, 19.5], [-5.029999999999973, 20.03], [-4.5, 20.25], [-4.25, 20.15], [-4.0, 20.25], [-3.4700000000000273, 20.03], [-3.25, 19.5], [-3.4700000000000273, 18.97], [-4.0, 18.75], [-4.25, 18.85], [-4.5, 18.75]]]]}, "2024-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.25, 19.0], [-10.04000000000002, 19.5], [-10.25, 20.0], [-10.029999999999973, 20.53], [-9.5, 20.75], [-8.970000000000027, 20.53], [-8.819999999999993, 20.18], [-8.75, 20.15], [-8.5, 20.25], [-8.0, 20.04], [-7.5, 20.25], [-7.199999999999989, 20.12], [-7.029999999999973, 20.53], [-6.5, 20.75], [-6.25, 20.65], [-6.0, 20.75], [-5.470000000000027, 20.53], [-5.25, 20.0], [-5.3700000000000045, 19.7], [-5.25, 19.65], [-5.180000000000007, 19.68], [-5.029999999999973, 20.03], [-4.5, 20.25], [-4.25, 20.15], [-4.0, 20.25], [-3.4700000000000273, 20.03], [-3.25, 19.5], [-3.4700000000000273, 18.97], [-4.0, 18.75], [-4.25, 18.85], [-4.319999999999993, 18.82], [-4.470000000000027, 18.47], [-5.0, 18.25], [-5.25, 18.35], [-5.319999999999993, 18.32], [-5.470000000000027, 17.97], [-6.0, 17.75], [-6.25, 17.85], [-6.5, 17.75], [-6.75, 17.85], [-7.0, 17.75], [-7.5, 17.96], [-8.0, 17.75], [-8.25, 17.85], [-8.5, 17.75], [-8.75, 17.85], [-9.0, 17.75], [-9.25, 17.85], [-9.5, 17.75], [-10.029999999999973, 17.97], [-10.25, 18.5], [-10.149999999999977, 18.75], [-10.25, 19.0]]]]}, "2024-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.25, 19.0], [-10.04000000000002, 19.5], [-10.25, 20.0], [-10.029999999999973, 20.53], [-9.5, 20.75], [-8.970000000000027, 20.53], [-8.819999999999993, 20.18], [-8.75, 20.15], [-8.5, 20.25], [-8.0, 20.04], [-7.5, 20.25], [-7.199999999999989, 20.12], [-7.029999999999973, 20.53], [-6.5, 20.75], [-6.25, 20.65], [-6.0, 20.75], [-5.470000000000027, 20.53], [-5.25, 20.0], [-5.3700000000000045, 19.7], [-5.25, 19.65], [-5.180000000000007, 19.68], [-5.029999999999973, 20.03], [-4.5, 20.25], [-4.25, 20.15], [-4.0, 20.25], [-3.4700000000000273, 20.03], [-3.25, 19.5], [-3.4700000000000273, 18.97], [-4.0, 18.75], [-4.25, 18.85], [-4.319999999999993, 18.82], [-4.470000000000027, 18.47], [-5.0, 18.25], [-5.25, 18.35], [-5.319999999999993, 18.32], [-5.470000000000027, 17.97], [-6.0, 17.75], [-6.25, 17.85], [-6.5, 17.75], [-6.75, 17.85], [-7.0, 17.75], [-7.5, 17.96], [-8.0, 17.75], [-8.25, 17.85], [-8.5, 17.75], [-8.75, 17.85], [-9.0, 17.75], [-9.25, 17.85], [-9.5, 17.75], [-10.029999999999973, 17.97], [-10.25, 18.5], [-10.149999999999977, 18.75], [-10.25, 19.0]]]]}, "2024-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.25, 19.0], [-10.04000000000002, 19.5], [-10.25, 20.0], [-10.029999999999973, 20.53], [-9.5, 20.75], [-8.970000000000027, 20.53], [-8.819999999999993, 20.18], [-8.75, 20.15], [-8.5, 20.25], [-8.0, 20.04], [-7.5, 20.25], [-7.199999999999989, 20.12], [-7.029999999999973, 20.53], [-6.5, 20.75], [-6.25, 20.65], [-6.0, 20.75], [-5.470000000000027, 20.53], [-5.25, 20.0], [-5.3700000000000045, 19.7], [-5.25, 19.65], [-5.0, 19.75], [-4.470000000000027, 19.53], [-4.25, 19.0], [-4.470000000000027, 18.47], [-5.0, 18.25], [-5.25, 18.35], [-5.319999999999993, 18.32], [-5.470000000000027, 17.97], [-6.0, 17.75], [-6.25, 17.85], [-6.5, 17.75], [-6.75, 17.85], [-7.0, 17.75], [-7.5, 17.96], [-8.0, 17.75], [-8.25, 17.85], [-8.5, 17.75], [-8.75, 17.85], [-9.0, 17.75], [-9.25, 17.85], [-9.5, 17.75], [-10.029999999999973, 17.97], [-10.25, 18.5], [-10.149999999999977, 18.75], [-10.25, 19.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.229361725005049}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.452617117404557}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.02221875588242, 35.63944220873543, 35.750848340944515, 35.70421467085441]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.15510822905003, 36.79764901408595, 36.39698196198742, 36.489075816880984]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1574693205135986, 2.4437111736032215, 2.5048011270996198, 2.4312407672497183]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2442890392822505, 2.909579139837774, 3.229361725005049, 3.0451227982374007]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3172337174559772, 1.3304020725440995, 1.4004297880298824, 1.3897194480392057]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3565013685401948, 1.845218009336371, 1.6056685751380837, 1.6064146746281405]}}