{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:42.343761", "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": "2011-Oct-16_to_2011-Oct-22_11.0_14.0"}, "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": 2011100002348}, "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": "October 16 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 22 2011"}, "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": 210113.28480536898}, "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": ["Chad", "Niger", "Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "Sahara", "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": 14.0}, "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": 11.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, 14.0], [7.47, 14.53], [8.0, 14.75], [8.25, 14.65], [8.5, 14.75], [8.75, 14.65], [9.0, 14.75], [9.25, 14.65], [9.5, 14.75], [9.75, 14.65], [10.0, 14.75], [10.5, 14.54], [11.0, 14.75], [11.53, 14.53], [11.75, 14.0], [11.53, 13.47], [11.0, 13.25], [10.5, 13.46], [10.0, 13.25], [9.75, 13.35], [9.5, 13.25], [9.25, 13.35], [9.18, 13.32], [9.03, 12.97], [8.5, 12.75], [7.97, 12.97], [7.82, 13.32], [7.47, 13.47], [7.25, 14.0]]]]}, "2011-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.97, 15.03], [7.5, 15.25], [8.03, 15.03], [8.18, 14.68], [8.25, 14.65], [8.5, 14.75], [8.75, 14.65], [9.0, 14.75], [9.25, 14.65], [9.5, 14.75], [9.75, 14.65], [10.0, 14.75], [10.5, 14.54], [11.0, 14.75], [11.53, 14.53], [11.75, 14.0], [11.53, 13.47], [11.0, 13.25], [10.5, 13.46], [10.0, 13.25], [9.75, 13.35], [9.5, 13.25], [9.25, 13.35], [9.18, 13.32], [9.03, 12.97], [8.5, 12.75], [8.25, 12.85], [8.0, 12.75], [7.47, 12.97], [7.32, 13.32], [6.97, 13.47], [6.75, 14.0], [6.85, 14.25], [6.75, 14.5], [6.97, 15.03]]]]}, "2011-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 11.97], [12.25, 12.5], [12.47, 13.03], [13.0, 13.25], [13.53, 13.03], [13.75, 12.5], [13.53, 11.97], [13.0, 11.75], [12.47, 11.97]]], [[[14.97, 13.53], [15.5, 13.75], [16.0, 13.54], [16.5, 13.75], [16.75, 13.65], [17.0, 13.75], [17.53, 13.53], [17.75, 13.0], [17.53, 12.47], [17.0, 12.25], [16.75, 12.35], [16.5, 12.25], [16.0, 12.46], [15.5, 12.25], [14.97, 12.47], [14.75, 13.0], [14.97, 13.53]]], [[[7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.68, 15.18], [8.03, 15.03], [8.18, 14.68], [8.25, 14.65], [8.32, 14.68], [8.47, 15.03], [9.0, 15.25], [9.25, 15.15], [9.5, 15.25], [9.75, 15.15], [10.0, 15.25], [10.25, 15.15], [10.5, 15.25], [10.75, 15.15], [11.0, 15.25], [11.53, 15.03], [11.68, 14.68], [12.03, 14.53], [12.25, 14.0], [12.03, 13.47], [11.5, 13.25], [11.25, 13.35], [11.0, 13.25], [10.75, 13.35], [10.68, 13.32], [10.53, 12.97], [10.0, 12.75], [9.47, 12.97], [9.32, 13.32], [9.25, 13.35], [9.18, 13.32], [9.03, 12.97], [8.5, 12.75], [8.25, 12.85], [8.0, 12.75], [7.47, 12.97], [7.32, 13.32], [7.25, 13.35], [7.0, 13.25], [6.47, 13.47], [6.25, 14.0], [6.35, 14.25], [6.32, 14.32], [5.97, 14.47], [5.75, 15.0], [5.85, 15.25], [5.75, 15.5], [5.97, 16.03], [6.5, 16.25], [7.03, 16.03]]]]}, "2011-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.85, 14.75], [5.75, 15.0], [5.85, 15.25], [5.75, 15.5], [5.97, 16.03], [6.5, 16.25], [7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.68, 15.18], [8.03, 15.03], [8.18, 14.68], [8.25, 14.65], [8.32, 14.68], [8.47, 15.03], [9.0, 15.25], [9.25, 15.15], [9.5, 15.25], [9.75, 15.15], [10.0, 15.25], [10.25, 15.15], [10.5, 15.25], [10.75, 15.15], [11.0, 15.25], [11.53, 15.03], [11.68, 14.68], [11.75, 14.65], [12.0, 14.75], [12.25, 14.65], [12.32, 14.68], [12.47, 15.03], [13.0, 15.25], [13.25, 15.15], [13.5, 15.25], [13.75, 15.15], [14.0, 15.25], [14.25, 15.15], [14.5, 15.25], [14.75, 15.15], [15.0, 15.25], [15.25, 15.15], [15.5, 15.25], [15.75, 15.15], [16.0, 15.25], [16.53, 15.03], [16.68, 14.68], [16.75, 14.65], [17.0, 14.75], [17.25, 14.65], [17.5, 14.75], [17.75, 14.65], [18.0, 14.75], [18.25, 14.65], [18.5, 14.75], [19.03, 14.53], [19.25, 14.0], [19.15, 13.75], [19.25, 13.5], [19.03, 12.97], [18.5, 12.75], [18.25, 12.85], [18.0, 12.75], [17.75, 12.85], [17.68, 12.82], [17.53, 12.47], [17.0, 12.25], [16.75, 12.35], [16.5, 12.25], [16.0, 12.46], [15.5, 12.25], [15.25, 12.35], [15.0, 12.25], [14.57, 12.43], [14.75, 12.0], [14.53, 11.47], [14.0, 11.25], [13.75, 11.35], [13.5, 11.25], [12.97, 11.47], [12.82, 11.82], [12.47, 11.97], [12.25, 12.5], [12.38, 12.8], [12.25, 12.85], [12.0, 12.75], [11.47, 12.97], [11.32, 13.32], [11.25, 13.35], [11.0, 13.25], [10.75, 13.35], [10.68, 13.32], [10.53, 12.97], [10.18, 12.82], [10.03, 12.47], [9.5, 12.25], [8.97, 12.47], [8.8, 12.88], [8.5, 12.75], [8.25, 12.85], [8.0, 12.75], [7.47, 12.97], [7.32, 13.32], [7.25, 13.35], [7.0, 13.25], [6.75, 13.35], [6.5, 13.25], [5.97, 13.47], [5.75, 14.0], [5.85, 14.25], [5.75, 14.5], [5.85, 14.75]], [[14.18, 12.68], [14.43, 12.57], [14.32, 12.82], [14.07, 12.93], [14.18, 12.68]], [[13.93, 13.07], [13.82, 13.32], [13.5, 13.46], [13.18, 13.32], [13.13, 13.2], [13.25, 13.15], [13.5, 13.25], [13.93, 13.07]]]]}, "2011-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.85, 14.75], [5.75, 15.0], [5.85, 15.25], [5.75, 15.5], [5.97, 16.03], [6.5, 16.25], [7.03, 16.03], [7.18, 15.68], [7.53, 15.53], [7.68, 15.18], [8.03, 15.03], [8.18, 14.68], [8.25, 14.65], [8.32, 14.68], [8.47, 15.03], [9.0, 15.25], [9.25, 15.15], [9.5, 15.25], [9.75, 15.15], [10.0, 15.25], [10.25, 15.15], [10.5, 15.25], [10.75, 15.15], [11.0, 15.25], [11.53, 15.03], [11.68, 14.68], [11.75, 14.65], [12.0, 14.75], [12.25, 14.65], [12.32, 14.68], [12.47, 15.03], [13.0, 15.25], [13.25, 15.15], [13.5, 15.25], [13.75, 15.15], [14.0, 15.25], [14.25, 15.15], [14.5, 15.25], [14.75, 15.15], [15.0, 15.25], [15.25, 15.15], [15.5, 15.25], [15.75, 15.15], [16.0, 15.25], [16.53, 15.03], [16.68, 14.68], [16.75, 14.65], [17.0, 14.75], [17.25, 14.65], [17.5, 14.75], [17.75, 14.65], [18.0, 14.75], [18.25, 14.65], [18.5, 14.75], [19.03, 14.53], [19.25, 14.0], [19.15, 13.75], [19.25, 13.5], [19.03, 12.97], [18.5, 12.75], [18.25, 12.85], [18.0, 12.75], [17.75, 12.85], [17.68, 12.82], [17.53, 12.47], [17.0, 12.25], [16.75, 12.35], [16.5, 12.25], [16.0, 12.46], [15.5, 12.25], [15.25, 12.35], [15.0, 12.25], [14.57, 12.43], [14.75, 12.0], [14.53, 11.47], [14.0, 11.25], [13.75, 11.35], [13.5, 11.25], [13.25, 11.35], [13.0, 11.25], [12.75, 11.35], [12.5, 11.25], [11.97, 11.47], [11.75, 12.0], [11.97, 12.53], [12.32, 12.68], [12.38, 12.8], [12.25, 12.85], [12.0, 12.75], [11.47, 12.97], [11.32, 13.32], [11.25, 13.35], [11.0, 13.25], [10.75, 13.35], [10.68, 13.32], [10.53, 12.97], [10.18, 12.82], [10.03, 12.47], [9.5, 12.25], [8.97, 12.47], [8.8, 12.88], [8.5, 12.75], [8.25, 12.85], [8.0, 12.75], [7.47, 12.97], [7.32, 13.32], [7.25, 13.35], [7.0, 13.25], [6.75, 13.35], [6.5, 13.25], [5.97, 13.47], [5.75, 14.0], [5.85, 14.25], [5.75, 14.5], [5.85, 14.75]], [[14.15, 12.75], [14.18, 12.68], [14.43, 12.57], [14.32, 12.82], [14.2, 12.88], [14.15, 12.75]]]]}, "2011-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.97, 15.03], [6.5, 15.25], [7.03, 15.03], [7.18, 14.68], [7.25, 14.65], [7.5, 14.75], [8.03, 14.53], [8.2, 14.13], [8.5, 14.25], [9.0, 14.04], [9.32, 14.18], [9.47, 14.53], [10.0, 14.75], [10.25, 14.65], [10.5, 14.75], [10.75, 14.65], [11.0, 14.75], [11.25, 14.65], [11.5, 14.75], [11.75, 14.65], [12.0, 14.75], [12.25, 14.65], [12.32, 14.68], [12.47, 15.03], [13.0, 15.25], [13.25, 15.15], [13.5, 15.25], [13.75, 15.15], [14.0, 15.25], [14.25, 15.15], [14.5, 15.25], [14.75, 15.15], [15.0, 15.25], [15.25, 15.15], [15.5, 15.25], [15.75, 15.15], [16.0, 15.25], [16.53, 15.03], [16.68, 14.68], [16.75, 14.65], [17.0, 14.75], [17.25, 14.65], [17.5, 14.75], [17.75, 14.65], [18.0, 14.75], [18.25, 14.65], [18.5, 14.75], [19.03, 14.53], [19.25, 14.0], [19.15, 13.75], [19.25, 13.5], [19.03, 12.97], [18.5, 12.75], [18.25, 12.85], [18.0, 12.75], [17.75, 12.85], [17.5, 12.75], [17.25, 12.85], [17.0, 12.75], [16.75, 12.85], [16.5, 12.75], [16.25, 12.85], [16.18, 12.82], [16.03, 12.47], [15.5, 12.25], [15.25, 12.35], [15.0, 12.25], [14.57, 12.43], [14.75, 12.0], [14.53, 11.47], [14.0, 11.25], [13.75, 11.35], [13.5, 11.25], [13.25, 11.35], [13.0, 11.25], [12.75, 11.35], [12.5, 11.25], [11.97, 11.47], [11.75, 12.0], [11.97, 12.53], [12.32, 12.68], [12.38, 12.8], [12.25, 12.85], [12.0, 12.75], [11.47, 12.97], [11.32, 13.32], [11.25, 13.35], [11.0, 13.25], [10.75, 13.35], [10.68, 13.32], [10.53, 12.97], [10.18, 12.82], [10.03, 12.47], [9.5, 12.25], [8.97, 12.47], [8.8, 12.88], [8.5, 12.75], [7.97, 12.97], [7.8, 13.38], [7.5, 13.25], [7.25, 13.35], [7.0, 13.25], [6.75, 13.35], [6.5, 13.25], [5.97, 13.47], [5.75, 14.0], [5.85, 14.25], [5.75, 14.5], [5.97, 15.03]], [[14.15, 12.75], [14.18, 12.68], [14.43, 12.57], [14.32, 12.82], [14.2, 12.88], [14.15, 12.75]]]]}, "2011-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.97, 15.03], [6.5, 15.25], [7.03, 15.03], [7.18, 14.68], [7.25, 14.65], [7.5, 14.75], [8.03, 14.53], [8.2, 14.13], [8.5, 14.25], [9.0, 14.04], [9.5, 14.25], [9.75, 14.15], [10.0, 14.25], [10.3, 14.13], [10.47, 14.53], [11.0, 14.75], [11.25, 14.65], [11.5, 14.75], [12.03, 14.53], [12.2, 14.13], [12.5, 14.25], [12.75, 14.15], [13.0, 14.25], [13.53, 14.03], [13.68, 13.68], [14.03, 13.53], [14.25, 13.0], [14.15, 12.75], [14.18, 12.68], [14.53, 12.53], [14.75, 12.0], [14.53, 11.47], [14.0, 11.25], [13.75, 11.35], [13.5, 11.25], [13.25, 11.35], [13.0, 11.25], [12.75, 11.35], [12.5, 11.25], [11.97, 11.47], [11.75, 12.0], [11.97, 12.53], [12.32, 12.68], [12.38, 12.8], [11.97, 12.97], [11.8, 13.38], [11.5, 13.25], [11.25, 13.35], [11.0, 13.25], [10.7, 13.38], [10.53, 12.97], [10.0, 12.75], [9.75, 12.85], [9.5, 12.75], [9.0, 12.96], [8.5, 12.75], [7.97, 12.97], [7.8, 13.38], [7.5, 13.25], [7.25, 13.35], [7.0, 13.25], [6.75, 13.35], [6.5, 13.25], [5.97, 13.47], [5.75, 14.0], [5.85, 14.25], [5.75, 14.5], [5.97, 15.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.955502727488067}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9500760664979941}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.957209630796342, 31.649919880681693, 31.84958203517573, 32.28283021470588, 31.966918594655453, 31.997292937401767, 31.251576173176602]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.49637031735824, 32.043358415490104, 32.57273705997028, 33.57624721264864, 33.575443352200125, 33.091519362174154, 31.955518391930582]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9523725328713633, 1.7861534762039752, 1.89915418081162, 2.097944921768819, 1.8912320115191952, 1.9469901249760984, 1.8123725027846989]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1475265943090562, 2.034942192006497, 2.4754218852484087, 2.955502727488067, 2.4395414784930836, 2.4994546476522146, 2.4452850419487504]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9021512944970076, 1.6384225333654137, 1.659078741399425, 1.8461729936272926, 1.65650623201221, 1.7115654338646114, 1.591062649810948]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.145177214128797, 1.9451570238713853, 1.9544737231038056, 2.443912122814878, 2.249759059626986, 2.120912687522783, 1.9471027760055806]}}