{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:59.791934", "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": "2010-Jan-17_to_2010-Jan-20_284.0_65.5"}, "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": 2010010002072}, "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 17 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 20 2010"}, "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": 96307.394253712}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": ["Hudson Bay", "Hudson Strait", "The Northwestern Passages"]}, "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": 65.5}, "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": 284.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "284.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 277.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 66.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.53, 67.03], [-76.0, 67.25], [-75.47, 67.03], [-75.32, 66.68], [-74.97, 66.53], [-74.75, 66.0], [-74.97, 65.47], [-75.5, 65.25], [-75.75, 65.35], [-76.0, 65.25], [-76.53, 65.47], [-76.75, 66.0], [-76.65, 66.25], [-76.75, 66.5], [-76.53, 67.03]]]]}, "2010-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.0, 63.25], [-81.75, 63.15], [-81.68, 63.18], [-81.65, 63.25], [-81.75, 63.5], [-81.53, 64.03], [-81.18, 64.18], [-81.03, 64.53], [-80.5, 64.75], [-80.25, 64.65], [-80.0, 64.75], [-79.75, 64.65], [-79.5, 64.75], [-79.25, 64.65], [-79.0, 64.75], [-78.75, 64.65], [-78.5, 64.75], [-78.25, 64.65], [-78.0, 64.75], [-77.75, 64.65], [-77.68, 64.68], [-77.65, 64.75], [-77.75, 65.0], [-77.53, 65.53], [-77.18, 65.68], [-77.03, 66.03], [-76.68, 66.18], [-76.65, 66.25], [-76.75, 66.5], [-76.53, 67.03], [-76.0, 67.25], [-75.47, 67.03], [-75.32, 66.68], [-75.25, 66.65], [-75.0, 66.75], [-74.47, 66.53], [-74.32, 66.18], [-74.25, 66.15], [-74.18, 66.18], [-74.03, 66.53], [-73.5, 66.75], [-73.25, 66.65], [-73.0, 66.75], [-72.75, 66.65], [-72.5, 66.75], [-71.97, 66.53], [-71.82, 66.18], [-71.47, 66.03], [-71.25, 65.5], [-71.35, 65.25], [-71.32, 65.18], [-70.97, 65.03], [-70.75, 64.5], [-70.97, 63.97], [-71.5, 63.75], [-71.75, 63.85], [-72.0, 63.75], [-72.25, 63.85], [-72.32, 63.82], [-72.47, 63.47], [-73.0, 63.25], [-73.53, 63.47], [-73.68, 63.82], [-73.75, 63.85], [-74.0, 63.75], [-74.25, 63.85], [-74.5, 63.75], [-74.75, 63.85], [-75.0, 63.75], [-75.25, 63.85], [-75.32, 63.82], [-75.47, 63.47], [-76.0, 63.25], [-76.25, 63.35], [-76.5, 63.25], [-76.75, 63.35], [-76.82, 63.32], [-76.97, 62.97], [-77.32, 62.82], [-77.47, 62.47], [-78.0, 62.25], [-78.25, 62.35], [-78.5, 62.25], [-78.75, 62.35], [-79.0, 62.25], [-79.25, 62.35], [-79.5, 62.25], [-79.75, 62.35], [-79.82, 62.32], [-79.97, 61.97], [-80.32, 61.82], [-80.47, 61.47], [-81.0, 61.25], [-81.53, 61.47], [-81.68, 61.82], [-81.75, 61.85], [-81.82, 61.82], [-81.97, 61.47], [-82.5, 61.25], [-83.03, 61.47], [-83.25, 62.0], [-83.03, 62.53], [-82.68, 62.68], [-82.53, 63.03], [-82.0, 63.25]]]]}, "2010-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.0, 63.25], [-81.75, 63.15], [-81.68, 63.18], [-81.65, 63.25], [-81.75, 63.5], [-81.53, 64.03], [-81.18, 64.18], [-81.03, 64.53], [-80.5, 64.75], [-80.25, 64.65], [-80.0, 64.75], [-79.75, 64.65], [-79.5, 64.75], [-79.25, 64.65], [-79.0, 64.75], [-78.75, 64.65], [-78.5, 64.75], [-78.25, 64.65], [-78.0, 64.75], [-77.75, 64.65], [-77.68, 64.68], [-77.65, 64.75], [-77.75, 65.0], [-77.53, 65.53], [-77.18, 65.68], [-77.03, 66.03], [-76.68, 66.18], [-76.65, 66.25], [-76.75, 66.5], [-76.53, 67.03], [-76.0, 67.25], [-75.47, 67.03], [-75.32, 66.68], [-75.25, 66.65], [-75.0, 66.75], [-74.47, 66.53], [-74.32, 66.18], [-74.25, 66.15], [-74.18, 66.18], [-74.03, 66.53], [-73.5, 66.75], [-73.25, 66.65], [-73.0, 66.75], [-72.75, 66.65], [-72.5, 66.75], [-71.97, 66.53], [-71.82, 66.18], [-71.47, 66.03], [-71.25, 65.5], [-71.35, 65.25], [-71.32, 65.18], [-70.97, 65.03], [-70.75, 64.5], [-70.97, 63.97], [-71.5, 63.75], [-71.75, 63.85], [-72.0, 63.75], [-72.25, 63.85], [-72.32, 63.82], [-72.47, 63.47], [-73.0, 63.25], [-73.53, 63.47], [-73.68, 63.82], [-73.75, 63.85], [-74.0, 63.75], [-74.25, 63.85], [-74.5, 63.75], [-74.75, 63.85], [-75.0, 63.75], [-75.25, 63.85], [-75.32, 63.82], [-75.47, 63.47], [-76.0, 63.25], [-76.25, 63.35], [-76.5, 63.25], [-76.75, 63.35], [-76.82, 63.32], [-76.97, 62.97], [-77.32, 62.82], [-77.47, 62.47], [-78.0, 62.25], [-78.25, 62.35], [-78.5, 62.25], [-78.75, 62.35], [-79.0, 62.25], [-79.25, 62.35], [-79.5, 62.25], [-79.75, 62.35], [-79.82, 62.32], [-79.97, 61.97], [-80.32, 61.82], [-80.47, 61.47], [-81.0, 61.25], [-81.53, 61.47], [-81.68, 61.82], [-81.75, 61.85], [-81.82, 61.82], [-81.97, 61.47], [-82.5, 61.25], [-83.03, 61.47], [-83.25, 62.0], [-83.03, 62.53], [-82.68, 62.68], [-82.53, 63.03], [-82.0, 63.25]]]]}, "2010-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.0, 63.25], [-81.75, 63.15], [-81.68, 63.18], [-81.65, 63.25], [-81.75, 63.5], [-81.53, 64.03], [-81.18, 64.18], [-81.03, 64.53], [-80.5, 64.75], [-80.25, 64.65], [-80.0, 64.75], [-79.75, 64.65], [-79.5, 64.75], [-79.25, 64.65], [-79.0, 64.75], [-78.75, 64.65], [-78.5, 64.75], [-78.25, 64.65], [-78.0, 64.75], [-77.75, 64.65], [-77.68, 64.68], [-77.65, 64.75], [-77.75, 65.0], [-77.53, 65.53], [-77.18, 65.68], [-77.03, 66.03], [-76.5, 66.25], [-76.25, 66.15], [-76.0, 66.25], [-75.75, 66.15], [-75.68, 66.18], [-75.53, 66.53], [-75.0, 66.75], [-74.47, 66.53], [-74.32, 66.18], [-74.25, 66.15], [-74.18, 66.18], [-74.03, 66.53], [-73.5, 66.75], [-73.25, 66.65], [-73.0, 66.75], [-72.75, 66.65], [-72.5, 66.75], [-71.97, 66.53], [-71.82, 66.18], [-71.47, 66.03], [-71.25, 65.5], [-71.35, 65.25], [-71.32, 65.18], [-70.97, 65.03], [-70.75, 64.5], [-70.97, 63.97], [-71.5, 63.75], [-71.75, 63.85], [-72.0, 63.75], [-72.25, 63.85], [-72.32, 63.82], [-72.47, 63.47], [-73.0, 63.25], [-73.53, 63.47], [-73.68, 63.82], [-73.75, 63.85], [-74.0, 63.75], [-74.25, 63.85], [-74.5, 63.75], [-74.75, 63.85], [-75.0, 63.75], [-75.25, 63.85], [-75.32, 63.82], [-75.47, 63.47], [-76.0, 63.25], [-76.25, 63.35], [-76.5, 63.25], [-76.75, 63.35], [-76.82, 63.32], [-76.97, 62.97], [-77.32, 62.82], [-77.47, 62.47], [-78.0, 62.25], [-78.25, 62.35], [-78.5, 62.25], [-78.75, 62.35], [-79.0, 62.25], [-79.25, 62.35], [-79.5, 62.25], [-79.75, 62.35], [-79.82, 62.32], [-79.97, 61.97], [-80.32, 61.82], [-80.47, 61.47], [-81.0, 61.25], [-81.53, 61.47], [-81.68, 61.82], [-81.75, 61.85], [-81.82, 61.82], [-81.97, 61.47], [-82.5, 61.25], [-83.03, 61.47], [-83.25, 62.0], [-83.03, 62.53], [-82.68, 62.68], [-82.53, 63.03], [-82.0, 63.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.72076364461978}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.705837677006555}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-19.121709162647534, -17.868234019550925, -14.097179655087018, -18.303574795717992]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-18.995259437283295, -16.107507960434305, -11.785316954086454, -14.940540827822645]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.1703727769508605, 8.443116764900456, 12.43572007877924, 8.328602422574281]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.386585669162741, 11.761521890670451, 16.72076364461978, 11.377444426919936]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4909124427943965, 1.6832917065146786, 2.50412056327495, 1.6266855062338945]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5011201840169526, 2.0732320808680655, 2.8705590961423746, 2.152503478237105]}}