{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:33.651099", "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": "2013-Sep-17_to_2013-Sep-19_298.5_-67.5"}, "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": 2013090002294}, "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": "September 17 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 19 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 194840.13086559006}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Southern-Ocean", "W.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Southern 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": -67.5}, "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": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 311.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -69.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -62.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.68, -64.82], [-60.53, -64.47], [-60.18, -64.32], [-60.03, -63.97], [-59.5, -63.75], [-59.25, -63.85], [-59.0, -63.75], [-58.75, -63.85], [-58.68, -63.82], [-58.53, -63.47], [-58.0, -63.25], [-57.75, -63.35], [-57.5, -63.25], [-57.25, -63.35], [-57.0, -63.25], [-56.47, -63.47], [-56.32, -63.82], [-56.25, -63.85], [-56.0, -63.75], [-55.75, -63.85], [-55.5, -63.75], [-54.97, -63.97], [-54.82, -64.32], [-54.75, -64.35], [-54.68, -64.32], [-54.65, -64.25], [-54.75, -64.0], [-54.53, -63.47], [-54.18, -63.32], [-54.03, -62.97], [-53.5, -62.75], [-53.25, -62.85], [-53.18, -62.82], [-53.03, -62.47], [-52.68, -62.32], [-52.53, -61.97], [-52.0, -61.75], [-51.75, -61.85], [-51.5, -61.75], [-50.97, -61.97], [-50.82, -62.32], [-50.75, -62.35], [-50.5, -62.25], [-50.25, -62.35], [-50.0, -62.25], [-49.75, -62.35], [-49.5, -62.25], [-48.97, -62.47], [-48.82, -62.82], [-48.47, -62.97], [-48.25, -63.5], [-48.47, -64.03], [-48.82, -64.18], [-48.85, -64.25], [-48.75, -64.5], [-48.85, -64.75], [-48.75, -65.0], [-48.97, -65.53], [-49.5, -65.75], [-49.75, -65.65], [-50.0, -65.75], [-50.25, -65.65], [-50.5, -65.75], [-50.75, -65.65], [-50.82, -65.68], [-50.97, -66.03], [-51.5, -66.25], [-51.75, -66.15], [-52.0, -66.25], [-52.25, -66.15], [-52.5, -66.25], [-51.97, -66.47], [-51.75, -67.0], [-51.97, -67.53], [-52.32, -67.68], [-52.35, -67.75], [-52.25, -68.0], [-52.47, -68.53], [-52.82, -68.68], [-52.97, -69.03], [-53.5, -69.25], [-53.75, -69.15], [-54.0, -69.25], [-54.25, -69.15], [-54.5, -69.25], [-54.75, -69.15], [-54.82, -69.18], [-54.97, -69.53], [-55.5, -69.75], [-55.75, -69.65], [-56.0, -69.75], [-56.53, -69.53], [-56.75, -69.0], [-56.65, -68.75], [-56.68, -68.68], [-56.75, -68.65], [-57.0, -68.75], [-57.25, -68.65], [-57.5, -68.75], [-57.75, -68.65], [-58.0, -68.75], [-58.25, -68.65], [-58.5, -68.75], [-58.75, -68.65], [-59.0, -68.75], [-59.25, -68.65], [-59.5, -68.75], [-59.75, -68.65], [-60.0, -68.75], [-60.5, -68.54], [-61.0, -68.75], [-61.53, -68.53], [-61.68, -68.18], [-61.75, -68.15], [-62.0, -68.25], [-62.53, -68.03], [-62.75, -67.5], [-62.53, -66.97], [-62.0, -66.75], [-62.53, -66.53], [-62.75, -66.0], [-62.53, -65.47], [-62.18, -65.32], [-62.03, -64.97], [-61.5, -64.75]], [[-52.75, -66.15], [-53.0, -66.25], [-52.75, -66.35], [-52.5, -66.25], [-52.75, -66.15]], [[-53.25, -66.15], [-53.5, -66.25], [-53.25, -66.35], [-53.0, -66.25], [-53.25, -66.15]], [[-54.03, -66.03], [-54.18, -65.68], [-54.25, -65.65], [-54.5, -65.75], [-54.75, -65.65], [-55.0, -65.75], [-55.25, -65.65], [-55.32, -65.68], [-55.35, -65.75], [-55.25, -66.0], [-55.47, -66.53], [-56.0, -66.75], [-55.47, -66.97], [-55.32, -67.32], [-55.25, -67.35], [-55.12, -67.3], [-55.25, -67.0], [-55.03, -66.47], [-54.5, -66.25], [-54.25, -66.35], [-54.0, -66.25], [-53.75, -66.35], [-53.5, -66.25], [-54.03, -66.03]], [[-56.25, -66.65], [-56.5, -66.75], [-56.25, -66.85], [-56.0, -66.75], [-56.25, -66.65]], [[-56.75, -66.65], [-56.82, -66.68], [-56.85, -66.75], [-56.82, -66.82], [-56.75, -66.85], [-56.5, -66.75], [-56.75, -66.65]], [[-61.75, -66.85], [-61.5, -66.75], [-61.75, -66.65], [-62.0, -66.75], [-61.75, -66.85]], [[-61.25, -66.85], [-61.0, -66.75], [-61.25, -66.65], [-61.5, -66.75], [-61.25, -66.85]], [[-60.75, -66.85], [-60.5, -66.75], [-60.75, -66.65], [-61.0, -66.75], [-60.75, -66.85]], [[-60.25, -66.85], [-60.0, -66.75], [-60.25, -66.65], [-60.5, -66.75], [-60.25, -66.85]], [[-59.75, -66.85], [-59.68, -66.82], [-59.65, -66.75], [-59.68, -66.68], [-59.75, -66.65], [-60.0, -66.75], [-59.75, -66.85]]]]}, "2013-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.68, -64.82], [-60.53, -64.47], [-60.18, -64.32], [-60.03, -63.97], [-59.5, -63.75], [-59.25, -63.85], [-59.0, -63.75], [-58.75, -63.85], [-58.68, -63.82], [-58.53, -63.47], [-58.0, -63.25], [-57.75, -63.35], [-57.5, -63.25], [-57.25, -63.35], [-57.0, -63.25], [-56.47, -63.47], [-56.32, -63.82], [-56.25, -63.85], [-56.0, -63.75], [-55.75, -63.85], [-55.5, -63.75], [-54.97, -63.97], [-54.82, -64.32], [-54.75, -64.35], [-54.68, -64.32], [-54.65, -64.25], [-54.75, -64.0], [-54.53, -63.47], [-54.18, -63.32], [-54.03, -62.97], [-53.5, -62.75], [-53.25, -62.85], [-53.18, -62.82], [-53.03, -62.47], [-52.68, -62.32], [-52.53, -61.97], [-52.0, -61.75], [-51.75, -61.85], [-51.5, -61.75], [-50.97, -61.97], [-50.82, -62.32], [-50.75, -62.35], [-50.5, -62.25], [-50.25, -62.35], [-50.0, -62.25], [-49.75, -62.35], [-49.5, -62.25], [-48.97, -62.47], [-48.82, -62.82], [-48.47, -62.97], [-48.25, -63.5], [-48.47, -64.03], [-48.82, -64.18], [-48.85, -64.25], [-48.75, -64.5], [-48.85, -64.75], [-48.75, -65.0], [-48.97, -65.53], [-49.5, -65.75], [-49.75, -65.65], [-50.0, -65.75], [-50.25, -65.65], [-50.5, -65.75], [-50.75, -65.65], [-50.82, -65.68], [-50.97, -66.03], [-51.5, -66.25], [-51.75, -66.15], [-52.0, -66.25], [-52.25, -66.15], [-52.5, -66.25], [-51.97, -66.47], [-51.75, -67.0], [-51.97, -67.53], [-52.32, -67.68], [-52.35, -67.75], [-52.25, -68.0], [-52.47, -68.53], [-52.82, -68.68], [-52.97, -69.03], [-53.5, -69.25], [-53.75, -69.15], [-54.0, -69.25], [-54.25, -69.15], [-54.5, -69.25], [-54.75, -69.15], [-54.82, -69.18], [-54.97, -69.53], [-55.5, -69.75], [-55.75, -69.65], [-56.0, -69.75], [-56.53, -69.53], [-56.75, -69.0], [-56.65, -68.75], [-56.68, -68.68], [-56.75, -68.65], [-57.0, -68.75], [-57.25, -68.65], [-57.5, -68.75], [-57.75, -68.65], [-58.0, -68.75], [-58.25, -68.65], [-58.5, -68.75], [-58.75, -68.65], [-59.0, -68.75], [-59.25, -68.65], [-59.5, -68.75], [-59.75, -68.65], [-60.0, -68.75], [-60.5, -68.54], [-61.0, -68.75], [-61.53, -68.53], [-61.68, -68.18], [-61.75, -68.15], [-62.0, -68.25], [-62.53, -68.03], [-62.75, -67.5], [-62.53, -66.97], [-62.0, -66.75], [-62.53, -66.53], [-62.75, -66.0], [-62.53, -65.47], [-62.18, -65.32], [-62.03, -64.97], [-61.5, -64.75]], [[-52.75, -66.15], [-53.0, -66.25], [-52.75, -66.35], [-52.5, -66.25], [-52.75, -66.15]], [[-53.25, -66.15], [-53.5, -66.25], [-53.25, -66.35], [-53.0, -66.25], [-53.25, -66.15]], [[-54.03, -66.03], [-54.18, -65.68], [-54.25, -65.65], [-54.5, -65.75], [-54.75, -65.65], [-55.0, -65.75], [-55.25, -65.65], [-55.32, -65.68], [-55.35, -65.75], [-55.25, -66.0], [-55.47, -66.53], [-56.0, -66.75], [-55.47, -66.97], [-55.32, -67.32], [-55.25, -67.35], [-55.12, -67.3], [-55.25, -67.0], [-55.03, -66.47], [-54.5, -66.25], [-54.25, -66.35], [-54.0, -66.25], [-53.75, -66.35], [-53.5, -66.25], [-54.03, -66.03]], [[-56.25, -66.65], [-56.5, -66.75], [-56.25, -66.85], [-56.0, -66.75], [-56.25, -66.65]], [[-56.75, -66.65], [-56.82, -66.68], [-56.85, -66.75], [-56.82, -66.82], [-56.75, -66.85], [-56.5, -66.75], [-56.75, -66.65]], [[-61.75, -66.85], [-61.5, -66.75], [-61.75, -66.65], [-62.0, -66.75], [-61.75, -66.85]], [[-61.25, -66.85], [-61.0, -66.75], [-61.25, -66.65], [-61.5, -66.75], [-61.25, -66.85]], [[-60.75, -66.85], [-60.5, -66.75], [-60.75, -66.65], [-61.0, -66.75], [-60.75, -66.85]], [[-60.25, -66.85], [-60.0, -66.75], [-60.25, -66.65], [-60.5, -66.75], [-60.25, -66.85]], [[-59.75, -66.85], [-59.68, -66.82], [-59.65, -66.75], [-59.68, -66.68], [-59.75, -66.65], [-60.0, -66.75], [-59.75, -66.85]]]]}, "2013-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.5, -64.75], [-61.25, -64.85], [-61.0, -64.75], [-60.75, -64.85], [-60.68, -64.82], [-60.53, -64.47], [-60.18, -64.32], [-60.03, -63.97], [-59.5, -63.75], [-59.25, -63.85], [-59.0, -63.75], [-58.75, -63.85], [-58.68, -63.82], [-58.53, -63.47], [-58.0, -63.25], [-57.75, -63.35], [-57.5, -63.25], [-57.25, -63.35], [-57.0, -63.25], [-56.47, -63.47], [-56.32, -63.82], [-56.25, -63.85], [-56.0, -63.75], [-55.75, -63.85], [-55.5, -63.75], [-54.97, -63.97], [-54.82, -64.32], [-54.75, -64.35], [-54.68, -64.32], [-54.65, -64.25], [-54.75, -64.0], [-54.53, -63.47], [-54.18, -63.32], [-54.03, -62.97], [-53.5, -62.75], [-53.25, -62.85], [-53.18, -62.82], [-53.03, -62.47], [-52.68, -62.32], [-52.53, -61.97], [-52.0, -61.75], [-51.75, -61.85], [-51.5, -61.75], [-50.97, -61.97], [-50.82, -62.32], [-50.75, -62.35], [-50.5, -62.25], [-50.25, -62.35], [-50.0, -62.25], [-49.75, -62.35], [-49.5, -62.25], [-48.97, -62.47], [-48.82, -62.82], [-48.47, -62.97], [-48.25, -63.5], [-48.47, -64.03], [-48.82, -64.18], [-48.85, -64.25], [-48.75, -64.5], [-48.85, -64.75], [-48.75, -65.0], [-48.97, -65.53], [-49.5, -65.75], [-49.75, -65.65], [-50.0, -65.75], [-50.25, -65.65], [-50.5, -65.75], [-50.75, -65.65], [-50.82, -65.68], [-50.97, -66.03], [-51.5, -66.25], [-51.75, -66.15], [-52.0, -66.25], [-52.25, -66.15], [-52.5, -66.25], [-51.97, -66.47], [-51.75, -67.0], [-51.97, -67.53], [-52.32, -67.68], [-52.35, -67.75], [-52.25, -68.0], [-52.47, -68.53], [-52.82, -68.68], [-52.97, -69.03], [-53.5, -69.25], [-53.75, -69.15], [-54.0, -69.25], [-54.25, -69.15], [-54.5, -69.25], [-54.75, -69.15], [-54.82, -69.18], [-54.97, -69.53], [-55.5, -69.75], [-55.75, -69.65], [-56.0, -69.75], [-56.53, -69.53], [-56.75, -69.0], [-56.65, -68.75], [-56.68, -68.68], [-56.75, -68.65], [-57.0, -68.75], [-57.25, -68.65], [-57.5, -68.75], [-57.75, -68.65], [-58.0, -68.75], [-58.25, -68.65], [-58.5, -68.75], [-58.75, -68.65], [-59.0, -68.75], [-59.25, -68.65], [-59.5, -68.75], [-59.75, -68.65], [-60.0, -68.75], [-60.5, -68.54], [-61.0, -68.75], [-61.53, -68.53], [-61.68, -68.18], [-61.75, -68.15], [-62.0, -68.25], [-62.53, -68.03], [-62.75, -67.5], [-62.53, -66.97], [-62.0, -66.75], [-62.53, -66.53], [-62.75, -66.0], [-62.53, -65.47], [-62.18, -65.32], [-62.03, -64.97], [-61.5, -64.75]], [[-52.75, -66.15], [-53.0, -66.25], [-52.75, -66.35], [-52.5, -66.25], [-52.75, -66.15]], [[-53.25, -66.15], [-53.5, -66.25], [-53.25, -66.35], [-53.0, -66.25], [-53.25, -66.15]], [[-54.03, -66.03], [-54.18, -65.68], [-54.25, -65.65], [-54.5, -65.75], [-54.75, -65.65], [-55.0, -65.75], [-55.25, -65.65], [-55.32, -65.68], [-55.35, -65.75], [-55.25, -66.0], [-55.47, -66.53], [-56.0, -66.75], [-55.47, -66.97], [-55.32, -67.32], [-55.25, -67.35], [-55.12, -67.3], [-55.25, -67.0], [-55.03, -66.47], [-54.5, -66.25], [-54.25, -66.35], [-54.0, -66.25], [-53.75, -66.35], [-53.5, -66.25], [-54.03, -66.03]], [[-56.25, -66.65], [-56.5, -66.75], [-56.25, -66.85], [-56.0, -66.75], [-56.25, -66.65]], [[-56.75, -66.65], [-56.82, -66.68], [-56.85, -66.75], [-56.82, -66.82], [-56.75, -66.85], [-56.5, -66.75], [-56.75, -66.65]], [[-61.75, -66.85], [-61.5, -66.75], [-61.75, -66.65], [-62.0, -66.75], [-61.75, -66.85]], [[-61.25, -66.85], [-61.0, -66.75], [-61.25, -66.65], [-61.5, -66.75], [-61.25, -66.85]], [[-60.75, -66.85], [-60.5, -66.75], [-60.75, -66.65], [-61.0, -66.75], [-60.75, -66.85]], [[-60.25, -66.85], [-60.0, -66.75], [-60.25, -66.65], [-60.5, -66.75], [-60.25, -66.85]], [[-59.75, -66.85], [-59.68, -66.82], [-59.65, -66.75], [-59.68, -66.68], [-59.75, -66.65], [-60.0, -66.75], [-59.75, -66.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.24267271084213}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.744756046910894}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-2.5081908385162706, -2.530559640688807, -2.4689242115211982]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.10003413331259026, 0.10557292426778986, -0.3238003914761407]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [10.022440685020936, 9.671955432149534, 9.539872023562198]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [14.885266589633147, 16.24267271084213, 11.929311349903742]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5781973470828234, 1.5253923667159432, 1.5106190599480045]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9687503785141807, 2.205804500417968, 1.8917759027173546]}}