{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:31.591189", "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": "2017-Jul-11_to_2017-Jul-18_349.5_6.5"}, "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": 2017070001955}, "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 11 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 18 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 58338.39894048726}, "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", "Liberia", "Sierra Leone"]}, "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": ["North 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": 6.5}, "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": 349.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.5, 6.75], [-9.97, 6.53], [-9.75, 6.0], [-9.97, 5.47], [-10.5, 5.25], [-11.03, 5.47], [-11.25, 6.0], [-11.03, 6.53], [-10.5, 6.75]]]]}, "2017-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 7.0], [-12.03, 7.53], [-11.5, 7.75], [-11.25, 7.65], [-11.0, 7.75], [-10.75, 7.65], [-10.5, 7.75], [-9.97, 7.53], [-9.82, 7.18], [-9.47, 7.03], [-9.32, 6.68], [-8.97, 6.53], [-8.75, 6.0], [-8.85, 5.75], [-8.75, 5.5], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.25, 5.35], [-10.5, 5.25], [-11.03, 5.47], [-11.18, 5.82], [-11.53, 5.97], [-11.68, 6.32], [-12.03, 6.47], [-12.25, 7.0]]]]}, "2017-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 7.0], [-12.03, 7.53], [-11.5, 7.75], [-11.25, 7.65], [-11.0, 7.75], [-10.75, 7.65], [-10.5, 7.75], [-10.25, 7.65], [-10.0, 7.75], [-9.47, 7.53], [-9.32, 7.18], [-8.97, 7.03], [-8.75, 6.5], [-8.85, 6.25], [-8.75, 6.0], [-8.85, 5.75], [-8.75, 5.5], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.25, 5.35], [-10.5, 5.25], [-11.03, 5.47], [-11.18, 5.82], [-11.53, 5.97], [-11.68, 6.32], [-12.03, 6.47], [-12.25, 7.0]]]]}, "2017-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 7.0], [-12.03, 7.53], [-11.5, 7.75], [-11.25, 7.65], [-11.0, 7.75], [-10.75, 7.65], [-10.5, 7.75], [-10.25, 7.65], [-10.0, 7.75], [-9.75, 7.65], [-9.5, 7.75], [-9.25, 7.65], [-9.0, 7.75], [-8.47, 7.53], [-8.25, 7.0], [-8.35, 6.75], [-8.25, 6.5], [-8.35, 6.25], [-8.25, 6.0], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.68, 6.32], [-12.03, 6.47], [-12.25, 7.0]]]]}, "2017-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.53, 7.53], [-11.0, 7.75], [-10.75, 7.65], [-10.5, 7.75], [-10.25, 7.65], [-10.0, 7.75], [-9.75, 7.65], [-9.5, 7.75], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-8.25, 7.65], [-8.0, 7.75], [-7.47, 7.53], [-7.25, 7.0], [-7.47, 6.47], [-8.0, 6.25], [-8.25, 6.35], [-8.32, 6.32], [-8.35, 6.25], [-8.25, 6.0], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.75, 6.5], [-11.65, 6.75], [-11.75, 7.0], [-11.53, 7.53]]]]}, "2017-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.0], [-11.53, 7.53], [-11.0, 7.75], [-10.75, 7.65], [-10.5, 7.75], [-10.25, 7.65], [-10.0, 7.75], [-9.75, 7.65], [-9.68, 7.68], [-9.53, 8.03], [-9.0, 8.25], [-8.47, 8.03], [-8.32, 7.68], [-8.25, 7.65], [-8.0, 7.75], [-7.47, 7.53], [-7.25, 7.0], [-7.47, 6.47], [-8.0, 6.25], [-8.25, 6.35], [-8.32, 6.32], [-8.35, 6.25], [-8.25, 6.0], [-8.47, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25], [-9.75, 5.35], [-10.0, 5.25], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0]]]]}, "2017-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.0], [-11.53, 7.53], [-11.0, 7.75], [-10.5, 7.54], [-10.0, 7.75], [-9.75, 7.65], [-9.68, 7.68], [-9.53, 8.03], [-9.0, 8.25], [-8.47, 8.03], [-8.32, 7.68], [-8.25, 7.65], [-8.0, 7.75], [-7.47, 7.53], [-7.25, 7.0], [-7.47, 6.47], [-8.0, 6.25], [-8.25, 6.35], [-8.32, 6.32], [-8.47, 5.97], [-8.82, 5.82], [-8.97, 5.47], [-9.5, 5.25], [-9.75, 5.35], [-10.0, 5.25], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0]]]]}, "2017-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.0, 8.25], [-8.47, 8.03], [-8.25, 7.5], [-8.47, 6.97], [-9.0, 6.75], [-9.53, 6.97], [-9.75, 7.5], [-9.53, 8.03], [-9.0, 8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.63275641081691}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.046851348733932}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.96557648055665, 25.372942264535084, 25.45321785674139, 25.407967688815916, 25.364991944603617, 25.197966537744776, 25.006582179619954, 24.496880509712184]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.96557648055665, 26.182323102757152, 26.158184072655672, 25.786510295587675, 25.707785096371595, 25.60407978586585, 25.30944904563745, 24.496880509712184]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6021789073442392, 0.8638471546797802, 1.0427879827278115, 1.1395334024508619, 1.144120030812715, 1.1148921201923752, 0.9261550063834534, 0.9722372824036825]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.6021789073442392, 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