{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:04.772820", "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-Jan-03_to_2017-Jan-06_337.0_16.0"}, "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": 2017010001428}, "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": "January 03 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 06 2017"}, "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": 112989.38032259428}, "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": ["Cabo Verde"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean"]}, "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": 16.0}, "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": 337.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "337.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 332.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 338.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-23.75, 17.0], [-23.53, 17.53], [-23.18, 17.68], [-23.03, 18.03], [-22.5, 18.25], [-22.25, 18.15], [-22.18, 18.18], [-22.03, 18.53], [-21.5, 18.75], [-20.97, 18.53], [-20.75, 18.0], [-20.85, 17.75], [-20.75, 17.5], [-20.85, 17.25], [-20.75, 17.0], [-20.97, 16.47], [-21.32, 16.32], [-21.47, 15.97], [-21.82, 15.82], [-21.85, 15.75], [-21.75, 15.5], [-21.97, 14.97], [-22.5, 14.75], [-23.03, 14.97], [-23.18, 15.32], [-23.25, 15.35], [-23.5, 15.25], [-24.03, 15.47], [-24.25, 16.0], [-24.03, 16.53], [-23.68, 16.68], [-23.65, 16.75], [-23.75, 17.0]]]]}, "2017-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-27.53, 15.03], [-27.0, 15.25], [-26.75, 15.15], [-26.68, 15.18], [-26.65, 15.25], [-26.75, 15.5], [-26.53, 16.03], [-26.18, 16.18], [-26.03, 16.53], [-25.5, 16.75], [-25.25, 16.65], [-25.0, 16.75], [-24.75, 16.65], [-24.5, 16.75], [-24.25, 16.65], [-24.18, 16.68], [-24.03, 17.03], [-23.68, 17.18], [-23.53, 17.53], [-23.18, 17.68], [-23.03, 18.03], [-22.5, 18.25], [-22.25, 18.15], [-22.18, 18.18], [-22.03, 18.53], [-21.5, 18.75], [-20.97, 18.53], [-20.75, 18.0], [-20.85, 17.75], [-20.75, 17.5], [-20.85, 17.25], [-20.75, 17.0], [-20.97, 16.47], [-21.32, 16.32], [-21.47, 15.97], [-21.82, 15.82], [-21.85, 15.75], [-21.75, 15.5], [-21.97, 14.97], [-22.5, 14.75], [-22.75, 14.85], [-22.82, 14.82], [-22.97, 14.47], [-23.5, 14.25], [-24.0, 14.46], [-24.5, 14.25], [-24.75, 14.35], [-24.82, 14.32], [-24.97, 13.97], [-25.5, 13.75], [-25.75, 13.85], [-25.82, 13.82], [-25.97, 13.47], [-26.5, 13.25], [-26.75, 13.35], [-27.0, 13.25], [-27.53, 13.47], [-27.75, 14.0], [-27.65, 14.25], [-27.75, 14.5], [-27.53, 15.03]]]]}, "2017-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-27.53, 15.03], [-27.0, 15.25], [-26.75, 15.15], [-26.68, 15.18], [-26.65, 15.25], [-26.75, 15.5], [-26.53, 16.03], [-26.18, 16.18], [-26.03, 16.53], [-25.5, 16.75], [-25.25, 16.65], [-25.0, 16.75], [-24.75, 16.65], [-24.5, 16.75], [-24.25, 16.65], [-24.18, 16.68], [-24.03, 17.03], [-23.68, 17.18], [-23.53, 17.53], [-23.18, 17.68], [-23.03, 18.03], [-22.5, 18.25], [-22.25, 18.15], [-22.18, 18.18], [-22.03, 18.53], [-21.5, 18.75], [-20.97, 18.53], [-20.75, 18.0], [-20.85, 17.75], [-20.75, 17.5], [-20.85, 17.25], [-20.75, 17.0], [-20.97, 16.47], [-21.32, 16.32], [-21.47, 15.97], [-21.82, 15.82], [-21.85, 15.75], [-21.75, 15.5], [-21.97, 14.97], [-22.5, 14.75], [-22.75, 14.85], [-22.82, 14.82], [-22.97, 14.47], [-23.5, 14.25], [-24.0, 14.46], [-24.5, 14.25], [-24.75, 14.35], [-24.82, 14.32], [-24.97, 13.97], [-25.5, 13.75], [-25.75, 13.85], [-25.82, 13.82], [-25.97, 13.47], [-26.5, 13.25], [-26.75, 13.35], [-27.0, 13.25], [-27.53, 13.47], [-27.75, 14.0], [-27.65, 14.25], [-27.75, 14.5], [-27.53, 15.03]]]]}, "2017-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-27.53, 15.03], [-27.0, 15.25], [-26.75, 15.15], [-26.68, 15.18], [-26.65, 15.25], [-26.75, 15.5], [-26.53, 16.03], [-26.18, 16.18], [-26.03, 16.53], [-25.5, 16.75], [-25.25, 16.65], [-25.0, 16.75], [-24.75, 16.65], [-24.5, 16.75], [-24.25, 16.65], [-24.18, 16.68], [-24.03, 17.03], [-23.68, 17.18], [-23.53, 17.53], [-23.0, 17.75], [-22.75, 17.65], [-22.68, 17.68], [-22.53, 18.03], [-22.0, 18.25], [-21.47, 18.03], [-21.25, 17.5], [-21.47, 16.97], [-21.82, 16.82], [-21.85, 16.75], [-21.75, 16.5], [-21.85, 16.25], [-21.75, 16.0], [-21.97, 15.47], [-22.32, 15.32], [-22.47, 14.97], [-22.82, 14.82], [-22.97, 14.47], [-23.5, 14.25], [-24.0, 14.46], [-24.5, 14.25], [-24.75, 14.35], [-24.82, 14.32], [-24.97, 13.97], [-25.5, 13.75], [-25.75, 13.85], [-25.82, 13.82], [-25.97, 13.47], [-26.5, 13.25], [-26.75, 13.35], [-27.0, 13.25], [-27.53, 13.47], [-27.75, 14.0], [-27.65, 14.25], [-27.75, 14.5], [-27.53, 15.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8164927264414814}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3845037879790691}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.533762117225535, 23.87203785761733, 24.07469980113791, 23.638999566594748]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.019226692016616, 24.492547078784753, 25.016182864953464, 24.49425938295292]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3148282659268715, 1.3410969055672979, 1.6219126672184305, 1.1804088509253443]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4660616657427, 1.757383984036835, 1.8164927264414814, 1.416327850058451]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5190762026475526, 1.6949847919378385, 2.0904801567714757, 1.5700770033989802]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6129136808345592, 1.9611697475199281, 2.5333489596487744, 1.864565327312469]}}