{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:09.995186", "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-Dec-01_to_2011-Dec-10_80.0_9.5"}, "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": 2011120001685}, "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": "December 01 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 10}, "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": 239007.0579876848}, "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": ["Sri Lanka"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Bay-of-Bengal", "Equatorial.Indian-Ocean", "S.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Bay of Bengal", "Laccadive Sea"]}, "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": 9.5}, "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": 80.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "80.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 73.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.0, 10.25], [80.53, 10.03], [80.75, 9.5], [80.53, 8.97], [80.0, 8.75], [79.47, 8.97], [79.25, 9.5], [79.47, 10.03], [80.0, 10.25]]]]}, "2011-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.0, 8.75], [79.53, 8.53], [79.68, 8.18], [79.8, 8.13], [79.97, 8.53], [80.5, 8.75], [80.75, 8.65], [81.0, 8.75], [81.53, 8.53], [81.75, 8.0], [81.53, 7.47], [81.0, 7.25], [80.75, 7.35], [80.5, 7.25], [80.2, 7.37], [80.03, 6.97], [79.5, 6.75], [79.25, 6.85], [79.0, 6.75], [78.47, 6.97], [78.25, 7.5], [78.35, 7.75], [78.25, 8.0], [78.47, 8.53], [79.0, 8.75]]], [[[79.47, 8.97], [79.25, 9.5], [79.47, 10.03], [80.0, 10.25], [80.53, 10.03], [80.75, 9.5], [80.53, 8.97], [80.0, 8.75], [79.47, 8.97]]]]}, "2011-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 3.97], [75.75, 4.5], [75.97, 5.03], [76.5, 5.25], [77.03, 5.03], [77.25, 4.5], [77.03, 3.97], [76.5, 3.75], [75.97, 3.97]]], [[[77.82, 8.68], [77.97, 9.03], [78.32, 9.18], [78.35, 9.25], [78.25, 9.5], [78.47, 10.03], [79.0, 10.25], [79.5, 10.04], [80.0, 10.25], [80.53, 10.03], [80.75, 9.5], [80.53, 8.97], [80.0, 8.75], [79.7, 8.87], [79.65, 8.75], [79.75, 8.5], [79.65, 8.25], [79.68, 8.18], [79.8, 8.13], [79.97, 8.53], [80.5, 8.75], [80.75, 8.65], [81.0, 8.75], [81.53, 8.53], [81.75, 8.0], [81.53, 7.47], [81.18, 7.32], [81.03, 6.97], [80.5, 6.75], [80.0, 6.96], [79.5, 6.75], [79.25, 6.85], [79.0, 6.75], [78.75, 6.85], [78.5, 6.75], [78.25, 6.85], [78.0, 6.75], [77.47, 6.97], [77.25, 7.5], [77.35, 7.75], [77.25, 8.0], [77.47, 8.53], [77.82, 8.68]]]]}, "2011-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 4.03], [74.82, 4.18], [74.97, 4.53], [75.5, 4.75], [75.8, 4.63], [75.85, 4.75], [75.75, 5.0], [75.97, 5.53], [76.5, 5.75], [76.75, 5.65], [76.88, 5.7], [76.75, 6.0], [76.85, 6.25], [76.75, 6.5], [76.85, 6.75], [76.75, 7.0], [76.97, 7.53], [77.32, 7.68], [77.35, 7.75], [77.25, 8.0], [77.47, 8.53], [77.82, 8.68], [77.97, 9.03], [78.32, 9.18], [78.35, 9.25], [78.25, 9.5], [78.47, 10.03], [79.0, 10.25], [79.5, 10.04], [80.0, 10.25], [80.53, 10.03], [80.75, 9.5], [80.53, 8.97], [80.0, 8.75], [79.7, 8.87], [79.65, 8.75], [79.75, 8.5], [79.65, 8.25], [79.68, 8.18], [79.75, 8.15], [79.82, 8.18], [79.97, 8.53], [80.5, 8.75], [80.75, 8.65], [81.0, 8.75], [81.53, 8.53], [81.75, 8.0], [81.53, 7.47], [81.18, 7.32], [81.03, 6.97], [80.68, 6.82], [80.53, 6.47], [80.0, 6.25], [79.47, 6.47], [79.32, 6.82], [79.25, 6.85], [79.18, 6.82], [79.03, 6.47], [78.68, 6.32], [78.65, 6.25], [78.75, 6.0], [78.53, 5.47], [78.0, 5.25], [77.75, 5.35], [77.63, 5.3], [77.75, 5.0], [77.65, 4.75], [77.75, 4.5], [77.53, 3.97], [77.0, 3.75], [76.75, 3.85], [76.5, 3.75], [76.2, 3.87], [76.15, 3.75], [76.25, 3.5], [76.15, 3.25], [76.25, 3.0], [76.03, 2.47], [75.5, 2.25], [75.25, 2.35], [75.0, 2.25], [74.47, 2.47], [74.25, 3.0], [74.35, 3.25], [74.25, 3.5], [74.47, 4.03]]]]}, "2011-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.47, 4.03], [74.82, 4.18], [74.97, 4.53], [75.5, 4.75], [75.8, 4.63], [75.85, 4.75], [75.75, 5.0], [75.96, 5.5], [75.75, 6.0], [75.97, 6.53], [76.32, 6.68], [76.47, 7.03], [76.82, 7.18], [76.97, 7.53], [77.32, 7.68], [77.35, 7.75], [77.25, 8.0], [77.47, 8.53], [77.82, 8.68], [77.97, 9.03], [78.32, 9.18], [78.35, 9.25], [78.25, 9.5], [78.47, 10.03], [79.0, 10.25], [79.25, 10.15], [79.5, 10.25], [79.75, 10.15], [80.0, 10.25], [80.25, 10.15], [80.5, 10.25], [80.75, 10.15], [81.0, 10.25], [81.53, 10.03], [81.75, 9.5], [81.65, 9.25], [81.75, 9.0], [81.53, 8.47], [81.13, 8.3], [81.25, 8.0], [81.15, 7.75], [81.25, 7.5], [81.03, 6.97], [80.68, 6.82], [80.65, 6.75], [80.75, 6.5], [80.53, 5.97], [80.0, 5.75], [79.47, 5.97], [79.25, 6.5], [79.35, 6.75], [79.32, 6.82], [79.25, 6.85], [79.18, 6.82], [79.03, 6.47], [78.68, 6.32], [78.65, 6.25], [78.75, 6.0], [78.53, 5.47], [78.18, 5.32], [78.03, 4.97], [77.68, 4.82], [77.65, 4.75], [77.75, 4.5], [77.53, 3.97], [77.0, 3.75], [76.75, 3.85], [76.5, 3.75], [76.2, 3.87], [76.15, 3.75], [76.25, 3.5], [76.15, 3.25], [76.25, 3.0], [76.03, 2.47], [75.5, 2.25], [75.25, 2.35], [75.0, 2.25], [74.47, 2.47], [74.25, 3.0], [74.35, 3.25], [74.25, 3.5], [74.47, 4.03]], [[80.25, 8.85], [80.18, 8.82], [80.15, 8.75], [80.2, 8.63], [80.38, 8.7], [80.32, 8.82], [80.25, 8.85]]]]}, "2011-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.85, 5.25], [73.75, 5.5], [73.97, 6.03], [74.32, 6.18], [74.47, 6.53], [75.0, 6.75], [75.25, 6.65], [75.5, 6.75], [75.75, 6.65], [76.0, 6.75], [76.25, 6.65], [76.32, 6.68], [76.47, 7.03], [76.82, 7.18], [76.97, 7.53], [77.32, 7.68], [77.35, 7.75], [77.25, 8.0], [77.47, 8.53], [77.82, 8.68], [77.97, 9.03], [78.32, 9.18], [78.47, 9.53], [78.82, 9.68], [78.97, 10.03], [79.5, 10.25], [79.75, 10.15], [79.82, 10.18], [79.97, 10.53], [80.5, 10.75], [81.03, 10.53], [81.18, 10.18], [81.53, 10.03], [81.75, 9.5], [81.65, 9.25], [81.75, 9.0], [81.53, 8.47], [81.0, 8.25], [80.47, 8.47], [80.32, 8.82], [80.25, 8.85], [80.18, 8.82], [80.15, 8.75], [80.25, 8.5], [80.15, 8.25], [80.18, 8.18], [80.53, 8.03], [80.75, 7.5], [80.65, 7.25], [80.75, 7.0], [80.65, 6.75], [80.75, 6.5], [80.53, 5.97], [80.0, 5.75], [79.47, 5.97], [79.25, 6.5], [79.35, 6.75], [79.32, 6.82], [79.2, 6.87], [79.03, 6.47], [78.68, 6.32], [78.65, 6.25], [78.75, 6.0], [78.53, 5.47], [78.18, 5.32], [78.03, 4.97], [77.68, 4.82], [77.65, 4.75], [77.75, 4.5], [77.53, 3.97], [77.0, 3.75], [76.75, 3.85], [76.5, 3.75], [76.2, 3.87], [76.15, 3.75], [76.25, 3.5], [76.15, 3.25], [76.25, 3.0], [76.03, 2.47], [75.5, 2.25], [75.25, 2.35], [75.0, 2.25], [74.47, 2.47], [74.25, 3.0], [74.35, 3.25], [74.25, 3.5], [74.38, 3.8], [73.97, 3.97], [73.75, 4.5], [73.85, 4.75], [73.75, 5.0], [73.85, 5.25]]]]}, "2011-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 5.97], [79.25, 6.5], [79.47, 7.03], [80.0, 7.25], [80.53, 7.03], [80.75, 6.5], [80.53, 5.97], [80.0, 5.75], [79.47, 5.97]]], [[[73.47, 6.03], [73.82, 6.18], [73.97, 6.53], [74.5, 6.75], [74.75, 6.65], [75.0, 6.75], [75.25, 6.65], [75.5, 6.75], [75.75, 6.65], [76.0, 6.75], [76.25, 6.65], [76.32, 6.68], [76.47, 7.03], [76.82, 7.18], [76.97, 7.53], [77.32, 7.68], [77.35, 7.75], [77.25, 8.0], [77.47, 8.53], [77.82, 8.68], [77.97, 9.03], [78.32, 9.18], [78.47, 9.53], [78.82, 9.68], [78.97, 10.03], [79.5, 10.25], [79.75, 10.15], [79.82, 10.18], [79.97, 10.53], [80.32, 10.68], [80.47, 11.03], [81.0, 11.25], [81.25, 11.15], [81.5, 11.25], [81.75, 11.15], [81.82, 11.18], [81.97, 11.53], [82.5, 11.75], [82.75, 11.65], [83.0, 11.75], [83.25, 11.65], [83.5, 11.75], [83.75, 11.65], [84.0, 11.75], [84.53, 11.53], [84.75, 11.0], [84.53, 10.47], [84.0, 10.25], [83.75, 10.35], [83.68, 10.32], [83.53, 9.97], [83.18, 9.82], [83.03, 9.47], [82.68, 9.32], [82.53, 8.97], [82.0, 8.75], [81.7, 8.87], [81.53, 8.47], [81.0, 8.25], [80.47, 8.47], [80.32, 8.82], [80.25, 8.85], [80.18, 8.82], [80.15, 8.75], [80.25, 8.5], [80.15, 8.25], [80.25, 8.0], [80.03, 7.47], [79.5, 7.25], [79.2, 7.37], [79.15, 7.25], [79.25, 7.0], [79.03, 6.47], [78.68, 6.32], [78.65, 6.25], [78.75, 6.0], [78.53, 5.47], [78.18, 5.32], [78.03, 4.97], [77.5, 4.75], [77.25, 4.85], [77.18, 4.82], [77.15, 4.75], [77.25, 4.5], [77.03, 3.97], [76.5, 3.75], [76.0, 3.96], [75.5, 3.75], [75.25, 3.85], [75.0, 3.75], [74.75, 3.85], [74.5, 3.75], [73.97, 3.97], [73.75, 4.5], [73.85, 4.75], [73.82, 4.82], [73.47, 4.97], [73.25, 5.5], [73.47, 6.03]]]]}, "2011-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.47, 6.03], [73.82, 6.18], [73.97, 6.53], [74.5, 6.75], [74.75, 6.65], [75.0, 6.75], [75.25, 6.65], [75.5, 6.75], [75.75, 6.65], [76.0, 6.75], [76.25, 6.65], [76.5, 6.75], [77.03, 6.53], [77.18, 6.18], [77.25, 6.15], [77.5, 6.25], [78.03, 6.03], [78.25, 5.5], [78.03, 4.97], [77.5, 4.75], [77.25, 4.85], [77.18, 4.82], [77.15, 4.75], [77.25, 4.5], [77.03, 3.97], [76.5, 3.75], [76.0, 3.96], [75.5, 3.75], [75.25, 3.85], [75.0, 3.75], [74.75, 3.85], [74.5, 3.75], [73.97, 3.97], [73.75, 4.5], [73.85, 4.75], [73.82, 4.82], [73.47, 4.97], [73.25, 5.5], [73.47, 6.03]]], [[[81.25, 11.15], [81.5, 11.25], [81.75, 11.15], [81.82, 11.18], [81.97, 11.53], [82.5, 11.75], [82.75, 11.65], [83.0, 11.75], [83.25, 11.65], [83.5, 11.75], [83.75, 11.65], [84.0, 11.75], [84.53, 11.53], [84.75, 11.0], [84.53, 10.47], [84.0, 10.25], [83.75, 10.35], [83.68, 10.32], [83.53, 9.97], [83.18, 9.82], [83.03, 9.47], [82.68, 9.32], [82.53, 8.97], [82.0, 8.75], [81.47, 8.97], [81.32, 9.32], [81.25, 9.35], [81.0, 9.25], [80.75, 9.35], [80.5, 9.25], [79.97, 9.47], [79.75, 10.0], [79.97, 10.53], [80.32, 10.68], [80.47, 11.03], [81.0, 11.25], [81.25, 11.15]]]]}, "2011-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.75, 6.65], [75.0, 6.75], [75.53, 6.53], [75.75, 6.0], [75.53, 5.47], [75.18, 5.32], [75.03, 4.97], [74.5, 4.75], [74.25, 4.85], [74.0, 4.75], [73.47, 4.97], [73.25, 5.5], [73.47, 6.03], [73.82, 6.18], [73.97, 6.53], [74.5, 6.75], [74.75, 6.65]]], [[[81.0, 11.25], [81.25, 11.15], [81.5, 11.25], [81.75, 11.15], [81.82, 11.18], [81.97, 11.53], [82.5, 11.75], [82.75, 11.65], [83.0, 11.75], [83.25, 11.65], [83.5, 11.75], [83.75, 11.65], [84.0, 11.75], [84.53, 11.53], [84.75, 11.0], [84.53, 10.47], [84.0, 10.25], [83.75, 10.35], [83.68, 10.32], [83.53, 9.97], [83.18, 9.82], [83.03, 9.47], [82.68, 9.32], [82.53, 8.97], [82.0, 8.75], [81.47, 8.97], [81.32, 9.32], [81.25, 9.35], [81.0, 9.25], [80.47, 9.47], [80.25, 10.0], [80.35, 10.25], [80.25, 10.5], [80.47, 11.03], [81.0, 11.25]]]]}, "2011-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.0, 6.75], [75.53, 6.53], [75.75, 6.0], [75.53, 5.47], [75.0, 5.25], [74.47, 5.47], [74.25, 6.0], [74.47, 6.53], [75.0, 6.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5465014225071627}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9352328294804237}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.049005074641514, 27.106112054484754, 27.131299506096752, 27.40508376642208, 27.352781356724506, 27.576150173483768, 27.509887025056003, 27.574874233810533, 27.556783327997778, 27.581186141813816]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.049005074641514, 27.456330411526494, 27.53676831669759, 27.9173735556613, 27.812852860934925, 28.06457700420998, 28.115379891686473, 27.838878930338808, 27.73838360101371, 27.581186141813816]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.828741337554959, 0.9544983077413937, 0.9600450679513521, 0.9901676529038355, 0.9045412870601796, 0.9858710789041298, 0.9057799485993892, 0.8841138614841737, 0.949112480566457, 0.6786723660291614]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.828741337554959, 1.4278281440530805, 1.5465014225071627, 1.2343116011257962, 1.1447272064322078, 1.346206437894864, 1.3500735363883791, 1.0882247053156675, 1.1573366542149301, 0.6786723660291614]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3583705246730668, 1.5097813210427875, 1.6886803560415238, 1.710828756095652, 1.6033159905608092, 1.692789510819013, 1.6259771016624427, 1.5856371409999945, 1.8366227272423115, 1.328037411472754]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3583705246730668, 1.7805446503895352, 2.07860710365998, 2.198650714414722, 2.0723103235895017, 2.049053422340357, 2.1807451410111387, 2.027379155875108, 2.3165622334726197, 1.328037411472754]}}