{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:51.240399", "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-12_to_2022-Jul-16_347.5_8.0"}, "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": 2022070002141}, "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 12 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2022"}, "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": 52018.882032042864}, "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": ["Liberia", "Sierra Leone"]}, "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": 8.0}, "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": 347.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "347.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-13.12, 9.2], [-13.25, 9.5], [-13.03, 10.03], [-12.5, 10.25], [-11.97, 10.03], [-11.82, 9.68], [-11.47, 9.53], [-11.32, 9.18], [-11.25, 9.15], [-11.0, 9.25], [-10.47, 9.03], [-10.32, 8.68], [-9.97, 8.53], [-9.75, 8.0], [-9.97, 7.47], [-10.32, 7.32], [-10.35, 7.25], [-10.25, 7.0], [-10.47, 6.47], [-11.0, 6.25], [-11.53, 6.47], [-11.68, 6.82], [-11.75, 6.85], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.03, 6.97], [-13.25, 7.5], [-13.15, 7.75], [-13.18, 7.82], [-13.53, 7.97], [-13.75, 8.5], [-13.53, 9.03], [-13.12, 9.2]]]]}}, "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": {"2022-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.25, 8.5], [-13.04000000000002, 9.0], [-13.25, 9.5], [-13.029999999999973, 10.03], [-12.5, 10.25], [-11.970000000000027, 10.03], [-11.819999999999993, 9.68], [-11.470000000000027, 9.53], [-11.25, 9.0], [-11.350000000000023, 8.75], [-11.25, 8.5], [-11.470000000000027, 7.97], [-11.819999999999993, 7.82], [-11.970000000000027, 7.47], [-12.5, 7.25], [-13.029999999999973, 7.47], [-13.25, 8.0], [-13.149999999999977, 8.25], [-13.25, 8.5]]]]}, "2022-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.529999999999973, 7.97], [-13.75, 8.5], [-13.529999999999973, 9.03], [-13.120000000000005, 9.2], [-13.25, 9.5], [-13.029999999999973, 10.03], [-12.5, 10.25], [-11.970000000000027, 10.03], [-11.819999999999993, 9.68], [-11.470000000000027, 9.53], [-11.319999999999993, 9.18], [-11.25, 9.15], [-11.0, 9.25], [-10.470000000000027, 9.03], [-10.25, 8.5], [-10.350000000000023, 8.25], [-10.25, 8.0], [-10.350000000000023, 7.75], [-10.25, 7.5], [-10.350000000000023, 7.25], [-10.25, 7.0], [-10.470000000000027, 6.47], [-11.0, 6.25], [-11.529999999999973, 6.47], [-11.680000000000007, 6.82], [-11.75, 6.85], [-12.0, 6.75], [-12.529999999999973, 6.97], [-12.680000000000007, 7.32], [-13.029999999999973, 7.47], [-13.180000000000007, 7.82], [-13.529999999999973, 7.97]]]]}, "2022-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.529999999999973, 7.97], [-13.75, 8.5], [-13.529999999999973, 9.03], [-13.120000000000005, 9.2], [-13.25, 9.5], [-13.029999999999973, 10.03], [-12.5, 10.25], [-11.970000000000027, 10.03], [-11.819999999999993, 9.68], [-11.470000000000027, 9.53], [-11.319999999999993, 9.18], [-11.25, 9.15], [-11.0, 9.25], [-10.470000000000027, 9.03], [-10.319999999999993, 8.68], [-9.970000000000027, 8.53], [-9.75, 8.0], [-9.970000000000027, 7.47], [-10.319999999999993, 7.32], [-10.350000000000023, 7.25], [-10.25, 7.0], [-10.470000000000027, 6.47], [-11.0, 6.25], [-11.529999999999973, 6.47], [-11.680000000000007, 6.82], [-11.75, 6.85], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.029999999999973, 6.97], [-13.25, 7.5], [-13.149999999999977, 7.75], [-13.180000000000007, 7.82], [-13.529999999999973, 7.97]]]]}, "2022-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.529999999999973, 7.97], [-13.75, 8.5], [-13.529999999999973, 9.03], [-13.120000000000005, 9.2], [-13.25, 9.5], [-13.029999999999973, 10.03], [-12.5, 10.25], [-11.970000000000027, 10.03], [-11.819999999999993, 9.68], [-11.470000000000027, 9.53], [-11.319999999999993, 9.18], [-11.25, 9.15], [-11.0, 9.25], [-10.470000000000027, 9.03], [-10.319999999999993, 8.68], [-9.970000000000027, 8.53], [-9.75, 8.0], [-9.970000000000027, 7.47], [-10.319999999999993, 7.32], [-10.350000000000023, 7.25], [-10.25, 7.0], [-10.470000000000027, 6.47], [-11.0, 6.25], [-11.529999999999973, 6.47], [-11.680000000000007, 6.82], [-11.75, 6.85], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.029999999999973, 6.97], [-13.25, 7.5], [-13.149999999999977, 7.75], [-13.180000000000007, 7.82], [-13.529999999999973, 7.97]]]]}, "2022-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.529999999999973, 7.97], [-13.75, 8.5], [-13.529999999999973, 9.03], [-13.0, 9.25], [-12.5, 9.04], [-12.0, 9.25], [-11.470000000000027, 9.03], [-11.319999999999993, 8.68], [-11.25, 8.65], [-11.0, 8.75], [-10.75, 8.65], [-10.5, 8.75], [-9.970000000000027, 8.53], [-9.75, 8.0], [-9.970000000000027, 7.47], [-10.319999999999993, 7.32], [-10.350000000000023, 7.25], [-10.25, 7.0], [-10.470000000000027, 6.47], [-11.0, 6.25], [-11.529999999999973, 6.47], [-11.680000000000007, 6.82], [-11.75, 6.85], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.029999999999973, 6.97], [-13.25, 7.5], [-13.149999999999977, 7.75], [-13.180000000000007, 7.82], [-13.529999999999973, 7.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5367087477296764}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1416214278053118}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.697405593223948, 25.444792422901003, 25.541834561306246, 25.38447616307633, 25.551153522192294]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.4856020285618, 26.525953933889866, 26.544391277406532, 26.4023105205697, 26.075532866399215]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9985672434582853, 1.1210064686561054, 1.2124300370146959, 1.0741441391383155, 1.216653558729116]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.191119315364972, 1.3526005083672317, 1.5367087477296764, 1.4562498822348289, 1.4866359328823933]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4279854551321658, 1.6500503973128298, 1.7927281891826288, 1.5520503084420119, 1.8858140621151984]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.499862284575434, 2.0465354420958755, 2.2261247001050664, 1.8876533808129439, 2.340187836321453]}}