{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:54:29.916542", "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": "2023-Jul-02_to_2023-Jul-07_353.5_11.0"}, "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": 2023070001269}, "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 02 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 07 2023"}, "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": 63798.19584797241}, "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": ["C\u00f4te d'Ivoire", "Guinea", "Mali"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": 11.0}, "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": 353.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "353.5\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": 354.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-6.5, 11.75], [-5.97, 11.53], [-5.82, 11.18], [-5.47, 11.03], [-5.32, 10.68], [-4.97, 10.53], [-4.75, 10.0], [-4.97, 9.47], [-5.5, 9.25], [-6.0, 9.46], [-6.5, 9.25], [-6.75, 9.35], [-7.0, 9.25], [-7.25, 9.35], [-7.5, 9.25], [-7.75, 9.35], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.53, 9.47], [-9.75, 10.0], [-9.54, 10.5], [-9.59, 10.61], [-9.68, 10.82], [-10.03, 10.97], [-10.25, 11.5], [-10.03, 12.03], [-9.5, 12.25], [-9.0, 12.04], [-8.5, 12.25], [-8.25, 12.15], [-8.0, 12.25], [-7.47, 12.03], [-7.32, 11.68], [-7.25, 11.65], [-7.0, 11.75], [-6.75, 11.65], [-6.5, 11.75]]]]}}, "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": {"2023-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.0, 10.25], [-9.529999999999973, 10.47], [-9.75, 11.0], [-9.529999999999973, 11.53], [-9.0, 11.75], [-8.470000000000027, 11.53], [-8.25, 11.0], [-8.430000000000007, 10.57], [-8.0, 10.75], [-7.75, 10.65], [-7.5, 10.75], [-7.25, 10.65], [-7.0, 10.75], [-6.470000000000027, 10.53], [-6.25, 10.0], [-6.470000000000027, 9.47], [-7.0, 9.25], [-7.25, 9.35], [-7.5, 9.25], [-7.75, 9.35], [-8.0, 9.25], [-8.529999999999973, 9.47], [-8.75, 10.0], [-8.569999999999993, 10.43], [-9.0, 10.25]]]]}, "2023-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.029999999999973, 10.97], [-10.25, 11.5], [-10.029999999999973, 12.03], [-9.5, 12.25], [-9.0, 12.04], [-8.5, 12.25], [-8.25, 12.15], [-8.0, 12.25], [-7.470000000000027, 12.03], [-7.319999999999993, 11.68], [-7.25, 11.65], [-7.0, 11.75], [-6.75, 11.65], [-6.5, 11.75], [-5.970000000000027, 11.53], [-5.819999999999993, 11.18], [-5.470000000000027, 11.03], [-5.25, 10.5], [-5.470000000000027, 9.97], [-5.819999999999993, 9.82], [-5.970000000000027, 9.47], [-6.5, 9.25], [-6.75, 9.35], [-7.0, 9.25], [-7.25, 9.35], [-7.5, 9.25], [-7.75, 9.35], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.529999999999973, 9.47], [-9.75, 10.0], [-9.54000000000002, 10.5], [-9.680000000000007, 10.82], [-10.029999999999973, 10.97]]]]}, "2023-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.029999999999973, 10.97], [-10.25, 11.5], [-10.029999999999973, 12.03], [-9.5, 12.25], [-9.0, 12.04], [-8.5, 12.25], [-8.25, 12.15], [-8.0, 12.25], [-7.470000000000027, 12.03], [-7.319999999999993, 11.68], [-7.25, 11.65], [-7.0, 11.75], [-6.75, 11.65], [-6.5, 11.75], [-5.970000000000027, 11.53], [-5.819999999999993, 11.18], [-5.470000000000027, 11.03], [-5.319999999999993, 10.68], [-4.970000000000027, 10.53], [-4.75, 10.0], [-4.970000000000027, 9.47], [-5.5, 9.25], [-6.0, 9.46], [-6.5, 9.25], [-6.75, 9.35], [-7.0, 9.25], [-7.25, 9.35], [-7.5, 9.25], [-7.75, 9.35], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.529999999999973, 9.47], [-9.75, 10.0], [-9.54000000000002, 10.5], [-9.680000000000007, 10.82], [-10.029999999999973, 10.97]]]]}, "2023-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.029999999999973, 10.97], [-10.25, 11.5], [-10.029999999999973, 12.03], [-9.5, 12.25], [-9.0, 12.04], [-8.5, 12.25], [-8.25, 12.15], [-8.0, 12.25], [-7.470000000000027, 12.03], [-7.319999999999993, 11.68], [-7.25, 11.65], [-7.0, 11.75], [-6.75, 11.65], [-6.5, 11.75], [-5.970000000000027, 11.53], [-5.819999999999993, 11.18], [-5.470000000000027, 11.03], [-5.319999999999993, 10.68], [-4.970000000000027, 10.53], [-4.75, 10.0], [-4.970000000000027, 9.47], [-5.5, 9.25], [-6.0, 9.46], [-6.5, 9.25], [-6.75, 9.35], [-7.0, 9.25], [-7.25, 9.35], [-7.5, 9.25], [-7.75, 9.35], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.529999999999973, 9.47], [-9.75, 10.0], [-9.54000000000002, 10.5], [-9.680000000000007, 10.82], [-10.029999999999973, 10.97]]]]}, "2023-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.25, 11.0], [-7.029999999999973, 11.53], [-6.5, 11.75], [-5.970000000000027, 11.53], [-5.819999999999993, 11.18], [-5.470000000000027, 11.03], [-5.319999999999993, 10.68], [-4.970000000000027, 10.53], [-4.75, 10.0], [-4.970000000000027, 9.47], [-5.5, 9.25], [-6.029999999999973, 9.47], [-6.180000000000007, 9.82], [-6.25, 9.85], [-6.5, 9.75], [-7.029999999999973, 9.97], [-7.25, 10.5], [-7.149999999999977, 10.75], [-7.25, 11.0]]]]}, "2023-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.25, 11.0], [-7.029999999999973, 11.53], [-6.5, 11.75], [-5.970000000000027, 11.53], [-5.819999999999993, 11.18], [-5.470000000000027, 11.03], [-5.319999999999993, 10.68], [-4.970000000000027, 10.53], [-4.75, 10.0], [-4.970000000000027, 9.47], [-5.5, 9.25], [-6.029999999999973, 9.47], [-6.180000000000007, 9.82], [-6.25, 9.85], [-6.5, 9.75], [-7.029999999999973, 9.97], [-7.25, 10.5], [-7.149999999999977, 10.75], [-7.25, 11.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.9100534444636423}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8804105264729203}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.150176344362706, 27.562512136995508, 27.976090638497453, 28.00309520120885, 27.938904417077936, 28.42520633664799]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.51310436095156, 28.704263385150284, 28.739275460077806, 29.188361456773578, 28.881486025698166, 29.522348375797662]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4514921303417339, 1.5710172283476482, 2.0216877940354587, 2.0768775640269155, 1.6957498428478175, 2.2677984949937695]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6043505916127856, 1.8698200086611791, 2.5997384820108778, 2.725103844175351, 2.1679907020863425, 2.9100534444636423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4285829855318233, 1.450726800770955, 1.9168902067251383, 1.9478472581670327, 1.4698686137794508, 2.0026985755177997]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5627003993670694, 1.6479469985605109, 2.6521430505924877, 2.580573281645361, 1.8346071319466895, 2.4787950351831176]}}