{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:03.659809", "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": "2015-May-12_to_2015-May-18_356.0_11.5"}, "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": 2015050001875}, "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": "May 12 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 18 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 206059.3394423417}, "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": ["Benin", "Burkina Faso", "C\u00f4te d'Ivoire", "Ghana", "Mali", "Togo"]}, "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": []}, "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": 11.5}, "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": 356.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "356.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 353.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 363.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.53, 12.53], [-4.0, 12.75], [-3.75, 12.65], [-3.5, 12.75], [-3.25, 12.65], [-3.0, 12.75], [-2.75, 12.65], [-2.68, 12.68], [-2.53, 13.03], [-2.0, 13.25], [-1.47, 13.03], [-1.25, 12.5], [-1.35, 12.25], [-1.32, 12.18], [-1.0, 12.04], [-0.5, 12.25], [-0.25, 12.15], [0.0, 12.25], [0.25, 12.15], [0.5, 12.25], [0.75, 12.15], [1.0, 12.25], [1.53, 12.03], [1.68, 11.68], [1.75, 11.65], [2.0, 11.75], [2.53, 11.53], [2.68, 11.18], [2.75, 11.15], [3.0, 11.25], [3.53, 11.03], [3.75, 10.5], [3.65, 10.25], [3.75, 10.0], [3.53, 9.47], [3.0, 9.25], [2.75, 9.35], [2.5, 9.25], [2.25, 9.35], [2.0, 9.25], [1.75, 9.35], [1.5, 9.25], [1.25, 9.35], [1.0, 9.25], [0.47, 9.47], [0.3, 9.88], [0.0, 9.75], [-0.25, 9.85], [-0.5, 9.75], [-0.75, 9.85], [-1.0, 9.75], [-1.25, 9.85], [-1.5, 9.75], [-1.75, 9.85], [-1.82, 9.82], [-1.97, 9.47], [-2.5, 9.25], [-3.03, 9.47], [-3.25, 10.0], [-3.03, 10.53], [-2.68, 10.68], [-2.65, 10.75], [-2.68, 10.82], [-3.0, 10.96], [-3.5, 10.75], [-3.75, 10.85], [-3.87, 10.8], [-3.75, 10.5], [-3.97, 9.97], [-4.5, 9.75], [-5.03, 9.97], [-5.25, 10.5], [-5.03, 11.03], [-4.62, 11.2], [-4.75, 11.5], [-4.65, 11.75], [-4.75, 12.0], [-4.53, 12.53]], [[0.85, 10.75], [0.82, 10.82], [0.75, 10.85], [0.68, 10.82], [0.65, 10.75], [0.7, 10.62], [0.82, 10.68], [0.85, 10.75]]]]}, "2015-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.53, 9.97], [-5.75, 10.5], [-5.53, 11.03], [-5.0, 11.25], [-4.75, 11.15], [-4.62, 11.2], [-4.75, 11.5], [-4.65, 11.75], [-4.75, 12.0], [-4.53, 12.53], [-4.18, 12.68], [-4.03, 13.03], [-3.5, 13.25], [-2.97, 13.03], [-2.82, 12.68], [-2.75, 12.65], [-2.68, 12.68], [-2.53, 13.03], [-2.0, 13.25], [-1.47, 13.03], [-1.25, 12.5], [-1.35, 12.25], [-1.32, 12.18], [-1.0, 12.04], [-0.5, 12.25], [-0.25, 12.15], [0.0, 12.25], [0.25, 12.15], [0.5, 12.25], [0.75, 12.15], [1.0, 12.25], [1.53, 12.03], [1.68, 11.68], [1.75, 11.65], [2.0, 11.75], [2.53, 11.53], [2.68, 11.18], [2.75, 11.15], [3.0, 11.25], [3.53, 11.03], [3.75, 10.5], [3.65, 10.25], [3.75, 10.0], [3.53, 9.47], [3.0, 9.25], [2.75, 9.35], [2.5, 9.25], [2.25, 9.35], [2.0, 9.25], [1.75, 9.35], [1.5, 9.25], [1.25, 9.35], [1.0, 9.25], [0.47, 9.47], [0.3, 9.88], [0.0, 9.75], [-0.25, 9.85], [-0.5, 9.75], [-0.75, 9.85], [-1.0, 9.75], [-1.25, 9.85], [-1.5, 9.75], [-1.75, 9.85], [-1.82, 9.82], [-1.97, 9.47], [-2.5, 9.25], [-3.03, 9.47], [-3.25, 10.0], [-3.03, 10.53], [-2.68, 10.68], [-2.65, 10.75], [-2.68, 10.82], [-3.0, 10.96], [-3.5, 10.75], [-3.75, 10.85], [-3.87, 10.8], [-3.75, 10.5], [-3.97, 9.97], [-4.5, 9.75], [-4.75, 9.85], [-5.0, 9.75], [-5.53, 9.97]], [[0.85, 10.75], [0.82, 10.82], [0.75, 10.85], [0.68, 10.82], [0.65, 10.75], [0.7, 10.62], [0.82, 10.68], [0.85, 10.75]]]]}, "2015-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.68, 10.18], [-5.65, 10.25], [-5.75, 10.5], [-5.65, 10.75], [-5.75, 11.0], [-5.53, 11.53], [-5.18, 11.68], [-5.15, 11.75], [-5.25, 12.0], [-5.03, 12.53], [-4.68, 12.68], [-4.53, 13.03], [-4.0, 13.25], [-3.75, 13.15], [-3.5, 13.25], [-2.97, 13.03], [-2.82, 12.68], [-2.75, 12.65], [-2.68, 12.68], [-2.53, 13.03], [-2.0, 13.25], [-1.47, 13.03], [-1.25, 12.5], [-1.35, 12.25], [-1.32, 12.18], [-1.0, 12.04], [-0.5, 12.25], [-0.25, 12.15], [0.0, 12.25], [0.25, 12.15], [0.5, 12.25], [0.75, 12.15], [1.0, 12.25], [1.53, 12.03], [1.68, 11.68], [1.75, 11.65], [2.0, 11.75], [2.53, 11.53], [2.68, 11.18], [2.75, 11.15], [3.0, 11.25], [3.53, 11.03], [3.75, 10.5], [3.65, 10.25], [3.75, 10.0], [3.53, 9.47], [3.0, 9.25], [2.75, 9.35], [2.5, 9.25], [2.25, 9.35], [2.0, 9.25], [1.75, 9.35], [1.5, 9.25], [1.25, 9.35], [1.0, 9.25], [0.47, 9.47], [0.3, 9.88], [0.0, 9.75], [-0.25, 9.85], [-0.5, 9.75], [-0.75, 9.85], [-1.0, 9.75], [-1.25, 9.85], [-1.5, 9.75], [-1.75, 9.85], [-1.82, 9.82], [-1.97, 9.47], [-2.5, 9.25], [-3.03, 9.47], [-3.2, 9.88], [-3.5, 9.75], [-3.75, 9.85], [-4.0, 9.75], [-4.25, 9.85], [-4.32, 9.82], [-4.47, 9.47], [-4.82, 9.32], [-4.85, 9.25], [-4.75, 9.0], [-4.97, 8.47], [-5.5, 8.25], [-5.75, 8.35], [-6.0, 8.25], [-6.53, 8.47], [-6.75, 9.0], [-6.53, 9.53], [-6.18, 9.68], [-6.03, 10.03], [-5.68, 10.18]], [[-2.65, 10.75], [-2.68, 10.82], [-2.8, 10.88], [-2.85, 10.75], [-2.8, 10.62], [-2.68, 10.68], [-2.65, 10.75]], [[0.85, 10.75], [0.82, 10.82], [0.75, 10.85], [0.68, 10.82], [0.65, 10.75], [0.7, 10.62], [0.82, 10.68], [0.85, 10.75]]]]}, "2015-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.68, 10.18], [-5.65, 10.25], [-5.75, 10.5], [-5.65, 10.75], [-5.75, 11.0], [-5.65, 11.25], [-5.75, 11.5], [-5.65, 11.75], [-5.75, 12.0], [-5.53, 12.53], [-5.18, 12.68], [-5.03, 13.03], [-4.5, 13.25], [-4.25, 13.15], [-4.0, 13.25], [-3.75, 13.15], [-3.5, 13.25], [-2.97, 13.03], [-2.82, 12.68], [-2.47, 12.53], [-2.25, 12.0], [-2.47, 11.47], [-2.82, 11.32], [-2.85, 11.25], [-2.75, 11.0], [-2.85, 10.75], [-2.75, 10.5], [-2.97, 9.97], [-3.5, 9.75], [-3.75, 9.85], [-4.0, 9.75], [-4.25, 9.85], [-4.32, 9.82], [-4.47, 9.47], [-4.82, 9.32], [-4.85, 9.25], [-4.75, 9.0], [-4.97, 8.47], [-5.5, 8.25], [-5.75, 8.35], [-6.0, 8.25], [-6.53, 8.47], [-6.75, 9.0], [-6.53, 9.53], [-6.18, 9.68], [-6.03, 10.03], [-5.68, 10.18]]]]}, "2015-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.68, 10.18], [-5.54, 10.5], [-5.75, 11.0], [-5.65, 11.25], [-5.75, 11.5], [-5.65, 11.75], [-5.75, 12.0], [-5.65, 12.25], [-5.75, 12.5], [-5.65, 12.75], [-5.75, 13.0], [-5.65, 13.25], [-5.75, 13.5], [-5.65, 13.75], [-5.75, 14.0], [-5.53, 14.53], [-5.0, 14.75], [-4.47, 14.53], [-4.3, 14.12], [-4.0, 14.25], [-3.47, 14.03], [-3.32, 13.68], [-2.97, 13.53], [-2.82, 13.18], [-2.75, 13.15], [-2.68, 13.18], [-2.53, 13.53], [-2.0, 13.75], [-1.47, 13.53], [-1.25, 13.0], [-1.35, 12.75], [-1.25, 12.5], [-1.35, 12.25], [-1.25, 12.0], [-1.47, 11.47], [-1.82, 11.32], [-1.97, 10.97], [-2.5, 10.75], [-2.75, 10.85], [-2.82, 10.82], [-2.85, 10.75], [-2.75, 10.5], [-2.97, 9.97], [-3.5, 9.75], [-3.75, 9.85], [-4.0, 9.75], [-4.25, 9.85], [-4.32, 9.82], [-4.47, 9.47], [-4.82, 9.32], [-4.85, 9.25], [-4.75, 9.0], [-4.97, 8.47], [-5.5, 8.25], [-5.75, 8.35], [-6.0, 8.25], [-6.53, 8.47], [-6.75, 9.0], [-6.53, 9.53], [-6.18, 9.68], [-6.03, 10.03], [-5.68, 10.18]]]]}, "2015-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.65, 11.75], [-5.75, 12.0], [-5.65, 12.25], [-5.75, 12.5], [-5.65, 12.75], [-5.75, 13.0], [-5.65, 13.25], [-5.75, 13.5], [-5.65, 13.75], [-5.75, 14.0], [-5.53, 14.53], [-5.0, 14.75], [-4.47, 14.53], [-4.3, 14.12], [-4.0, 14.25], [-3.47, 14.03], [-3.32, 13.68], [-2.97, 13.53], [-2.82, 13.18], [-2.75, 13.15], [-2.68, 13.18], [-2.53, 13.53], [-2.0, 13.75], [-1.47, 13.53], [-1.25, 13.0], [-1.35, 12.75], [-1.25, 12.5], [-1.35, 12.25], [-1.25, 12.0], [-1.47, 11.47], [-1.82, 11.32], [-1.97, 10.97], [-2.5, 10.75], [-2.75, 10.85], [-2.82, 10.82], [-2.85, 10.75], [-2.75, 10.5], [-2.97, 9.97], [-3.5, 9.75], [-3.75, 9.85], [-4.0, 9.75], [-4.25, 9.85], [-4.5, 9.75], [-4.93, 9.93], [-4.75, 9.5], [-4.97, 8.97], [-5.5, 8.75], [-6.03, 8.97], [-6.25, 9.5], [-6.03, 10.03], [-5.5, 10.25], [-5.07, 10.07], [-5.18, 10.32], [-5.53, 10.47], [-5.75, 11.0], [-5.65, 11.25], [-5.75, 11.5], [-5.65, 11.75]]]]}, "2015-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.65, 13.25], [-5.75, 13.5], [-5.65, 13.75], [-5.75, 14.0], [-5.53, 14.53], [-5.0, 14.75], [-4.47, 14.53], [-4.3, 14.12], [-4.0, 14.25], [-3.47, 14.03], [-3.32, 13.68], [-2.97, 13.53], [-2.82, 13.18], [-2.75, 13.15], [-2.68, 13.18], [-2.53, 13.53], [-2.0, 13.75], [-1.47, 13.53], [-1.25, 13.0], [-1.35, 12.75], [-1.25, 12.5], [-1.35, 12.25], [-1.25, 12.0], [-1.47, 11.47], [-1.82, 11.32], [-1.97, 10.97], [-2.5, 10.75], [-2.75, 10.85], [-2.82, 10.82], [-2.97, 10.47], [-3.5, 10.25], [-3.8, 10.38], [-3.97, 9.97], [-4.5, 9.75], [-5.03, 9.97], [-5.25, 10.5], [-5.15, 10.75], [-5.25, 11.0], [-5.04, 11.5], [-5.18, 11.82], [-5.53, 11.97], [-5.75, 12.5], [-5.65, 12.75], [-5.75, 13.0], [-5.65, 13.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.852095349995068}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.517362515789691}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.67970934032917, 32.65510809708877, 32.973600688179545, 32.648170065447175, 33.49612847033234, 34.201136360230805, 34.40603870028025]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.84349597432259, 35.25275740384694, 35.28538662892987, 35.191009188164344, 36.290510361985866, 36.858450345764254, 36.5705313400814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.169026093484921, 2.2157457694306117, 2.817294807443258, 2.4879421229270826, 2.3674313461803274, 2.851740312281903, 2.657392759148753]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.6648053395560396, 2.770313564233504, 3.852095349995068, 3.2456839399127375, 3.386322201152609, 3.77419347505662, 3.121351562222344]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4385247019541663, 1.4517491348336746, 1.8699310539093568, 1.7654047100560655, 1.58336858969842, 1.8168768721888147, 1.5909548492845833]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8799884948009795, 1.8331579973822665, 2.636963269203473, 2.2722927785416887, 2.3028862647565194, 2.295057267138409, 1.8630411277775165]}}