{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:26.253977", "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": "2020-Jun-11_to_2020-Jun-17_225.0_69.5"}, "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": 2020060001840}, "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": "June 11 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 17 2020"}, "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": 105566.50597481069}, "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.W.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": ["Beaufort 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": 69.5}, "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": 225.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "225.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 218.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 232.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 66.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-141.53, 69.03], [-141.0, 69.25], [-140.5, 69.04], [-140.0, 69.25], [-139.75, 69.15], [-139.5, 69.25], [-139.25, 69.15], [-139.0, 69.25], [-138.47, 69.03], [-138.25, 68.5], [-138.47, 67.97], [-138.82, 67.82], [-138.97, 67.47], [-139.5, 67.25], [-139.75, 67.35], [-140.0, 67.25], [-140.25, 67.35], [-140.5, 67.25], [-140.75, 67.35], [-141.0, 67.25], [-141.53, 67.47], [-141.75, 68.0], [-141.65, 68.25], [-141.75, 68.5], [-141.53, 69.03]]]]}, "2020-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-141.65, 68.25], [-141.75, 68.5], [-141.53, 69.03], [-141.0, 69.25], [-140.75, 69.15], [-140.5, 69.25], [-140.25, 69.15], [-140.0, 69.25], [-139.75, 69.15], [-139.5, 69.25], [-139.25, 69.15], [-139.0, 69.25], [-138.47, 69.03], [-138.32, 68.68], [-138.25, 68.65], [-138.0, 68.75], [-137.75, 68.65], [-137.5, 68.75], [-137.25, 68.65], [-137.0, 68.75], [-136.75, 68.65], [-136.5, 68.75], [-135.97, 68.53], [-135.75, 68.0], [-135.97, 67.47], [-136.32, 67.32], [-136.47, 66.97], [-137.0, 66.75], [-137.25, 66.85], [-137.5, 66.75], [-137.75, 66.85], [-138.0, 66.75], [-138.25, 66.85], [-138.5, 66.75], [-138.75, 66.85], [-139.0, 66.75], [-139.25, 66.85], [-139.5, 66.75], [-139.75, 66.85], [-140.0, 66.75], [-140.25, 66.85], [-140.5, 66.75], [-140.75, 66.85], [-141.0, 66.75], [-141.53, 66.97], [-141.75, 67.5], [-141.65, 67.75], [-141.75, 68.0], [-141.65, 68.25]]]]}, "2020-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-141.65, 68.25], [-141.75, 68.5], [-141.53, 69.03], [-141.0, 69.25], [-140.75, 69.15], [-140.5, 69.25], [-140.25, 69.15], [-140.0, 69.25], [-139.75, 69.15], [-139.5, 69.25], [-139.25, 69.15], [-139.0, 69.25], [-138.47, 69.03], [-138.32, 68.68], [-138.25, 68.65], [-138.0, 68.75], [-137.75, 68.65], [-137.5, 68.75], [-137.25, 68.65], [-137.0, 68.75], [-136.75, 68.65], [-136.5, 68.75], [-136.25, 68.65], [-136.0, 68.75], [-135.75, 68.65], [-135.68, 68.68], [-135.65, 68.75], [-135.75, 69.0], [-135.65, 69.25], [-135.75, 69.5], [-135.53, 70.03], [-135.0, 70.25], [-134.47, 70.03], [-134.32, 69.68], [-134.25, 69.65], [-134.0, 69.75], [-133.47, 69.53], [-133.32, 69.18], [-133.25, 69.15], [-133.0, 69.25], [-132.47, 69.03], [-132.25, 68.5], [-132.47, 67.97], [-132.82, 67.82], [-132.85, 67.75], [-132.75, 67.5], [-132.97, 66.97], [-133.32, 66.82], [-133.47, 66.47], [-134.0, 66.25], [-134.25, 66.35], [-134.5, 66.25], [-134.75, 66.35], [-135.0, 66.25], [-135.53, 66.47], [-135.68, 66.82], [-135.75, 66.85], [-136.0, 66.75], [-136.25, 66.85], [-136.5, 66.75], [-136.75, 66.85], [-137.0, 66.75], [-137.25, 66.85], [-137.5, 66.75], [-137.75, 66.85], [-138.0, 66.75], [-138.25, 66.85], [-138.5, 66.75], [-138.75, 66.85], [-139.0, 66.75], [-139.25, 66.85], [-139.5, 66.75], [-139.75, 66.85], [-140.0, 66.75], [-140.25, 66.85], [-140.5, 66.75], [-140.75, 66.85], [-141.0, 66.75], [-141.53, 66.97], [-141.75, 67.5], [-141.65, 67.75], [-141.75, 68.0], [-141.65, 68.25]]]]}, "2020-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-141.65, 68.25], [-141.75, 68.5], [-141.53, 69.03], [-141.0, 69.25], [-140.75, 69.15], [-140.5, 69.25], [-140.25, 69.15], [-140.0, 69.25], [-139.75, 69.15], [-139.5, 69.25], [-138.97, 69.03], [-138.82, 68.68], [-138.75, 68.65], [-138.5, 68.75], [-138.25, 68.65], [-138.0, 68.75], [-137.75, 68.65], [-137.5, 68.75], [-137.25, 68.65], [-137.0, 68.75], [-136.75, 68.65], [-136.5, 68.75], [-136.25, 68.65], [-136.0, 68.75], [-135.75, 68.65], [-135.68, 68.68], [-135.65, 68.75], [-135.75, 69.0], [-135.65, 69.25], [-135.75, 69.5], [-135.53, 70.03], [-135.0, 70.25], [-134.47, 70.03], [-134.32, 69.68], [-134.25, 69.65], [-134.18, 69.68], [-134.03, 70.03], [-133.5, 70.25], [-132.97, 70.03], [-132.82, 69.68], [-132.75, 69.65], [-132.5, 69.75], [-132.25, 69.65], [-132.0, 69.75], [-131.75, 69.65], [-131.5, 69.75], [-131.25, 69.65], [-131.0, 69.75], [-130.75, 69.65], [-130.5, 69.75], [-130.25, 69.65], [-130.0, 69.75], [-129.47, 69.53], [-129.25, 69.0], [-129.47, 68.47], [-130.0, 68.25], [-130.25, 68.35], [-130.5, 68.25], [-130.75, 68.35], [-131.0, 68.25], [-131.25, 68.35], [-131.5, 68.25], [-131.75, 68.35], [-132.0, 68.25], [-132.25, 68.35], [-132.32, 68.32], [-132.47, 67.97], [-132.82, 67.82], [-132.85, 67.75], [-132.75, 67.5], [-132.97, 66.97], [-133.32, 66.82], [-133.47, 66.47], [-134.0, 66.25], [-134.25, 66.35], [-134.5, 66.25], [-134.75, 66.35], [-135.0, 66.25], [-135.53, 66.47], [-135.68, 66.82], [-135.75, 66.85], [-136.0, 66.75], [-136.25, 66.85], [-136.5, 66.75], [-136.75, 66.85], [-137.0, 66.75], [-137.25, 66.85], [-137.5, 66.75], [-137.75, 66.85], [-138.0, 66.75], [-138.25, 66.85], [-138.5, 66.75], [-138.75, 66.85], [-139.0, 66.75], [-139.25, 66.85], [-139.5, 66.75], [-139.75, 66.85], [-140.0, 66.75], [-140.25, 66.85], [-140.5, 66.75], [-140.75, 66.85], [-141.0, 66.75], [-141.53, 66.97], [-141.75, 67.5], [-141.65, 67.75], [-141.75, 68.0], [-141.65, 68.25]]]]}, "2020-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-141.65, 68.25], [-141.75, 68.5], [-141.53, 69.03], [-141.0, 69.25], [-140.75, 69.15], [-140.5, 69.25], [-140.25, 69.15], [-140.0, 69.25], [-139.75, 69.15], [-139.5, 69.25], [-138.97, 69.03], [-138.82, 68.68], [-138.75, 68.65], [-138.5, 68.75], [-138.25, 68.65], [-138.0, 68.75], [-137.75, 68.65], [-137.5, 68.75], [-137.25, 68.65], [-137.0, 68.75], [-136.75, 68.65], [-136.5, 68.75], [-136.25, 68.65], [-136.0, 68.75], [-135.75, 68.65], [-135.68, 68.68], [-135.65, 68.75], [-135.75, 69.0], [-135.65, 69.25], [-135.75, 69.5], [-135.53, 70.03], [-135.12, 70.2], [-135.25, 70.5], [-135.03, 71.03], [-134.5, 71.25], [-134.25, 71.15], [-134.0, 71.25], [-133.75, 71.15], [-133.5, 71.25], [-133.25, 71.15], [-133.0, 71.25], [-132.75, 71.15], [-132.68, 71.18], [-132.53, 71.53], [-132.0, 71.75], [-131.75, 71.65], [-131.5, 71.75], [-131.25, 71.65], [-131.0, 71.75], [-130.75, 71.65], [-130.5, 71.75], [-130.25, 71.65], [-130.0, 71.75], [-129.75, 71.65], [-129.5, 71.75], [-128.97, 71.53], [-128.82, 71.18], [-128.47, 71.03], [-128.25, 70.5], [-128.35, 70.25], [-128.32, 70.18], [-128.25, 70.15], [-128.0, 70.25], [-127.47, 70.03], [-127.25, 69.5], [-127.47, 68.97], [-128.0, 68.75], [-128.25, 68.85], [-128.5, 68.75], [-128.75, 68.85], [-128.82, 68.82], [-128.97, 68.47], [-129.5, 68.25], [-129.75, 68.35], [-130.0, 68.25], [-130.25, 68.35], [-130.5, 68.25], [-130.75, 68.35], [-131.0, 68.25], [-131.25, 68.35], [-131.5, 68.25], [-131.75, 68.35], [-132.0, 68.25], [-132.25, 68.35], [-132.32, 68.32], [-132.47, 67.97], [-132.82, 67.82], [-132.85, 67.75], [-132.75, 67.5], [-132.97, 66.97], [-133.32, 66.82], [-133.47, 66.47], [-134.0, 66.25], [-134.25, 66.35], [-134.5, 66.25], [-134.75, 66.35], [-135.0, 66.25], [-135.53, 66.47], [-135.68, 66.82], [-135.75, 66.85], [-136.0, 66.75], [-136.25, 66.85], [-136.5, 66.75], [-136.75, 66.85], [-137.0, 66.75], [-137.25, 66.85], [-137.5, 66.75], [-137.75, 66.85], [-138.0, 66.75], [-138.25, 66.85], [-138.5, 66.75], [-138.75, 66.85], [-139.0, 66.75], [-139.25, 66.85], [-139.5, 66.75], [-139.75, 66.85], [-140.0, 66.75], [-140.25, 66.85], [-140.5, 66.75], [-140.75, 66.85], [-141.0, 66.75], [-141.53, 66.97], [-141.75, 67.5], [-141.65, 67.75], [-141.75, 68.0], [-141.65, 68.25]], [[-134.18, 69.68], [-134.12, 69.8], [-134.25, 69.85], [-134.37, 69.8], [-134.32, 69.68], [-134.25, 69.65], [-134.18, 69.68]]]]}, "2020-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-135.65, 69.25], [-135.75, 69.5], [-135.53, 70.03], [-135.12, 70.2], [-135.25, 70.5], [-135.03, 71.03], [-134.5, 71.25], [-134.25, 71.15], [-134.0, 71.25], [-133.75, 71.15], [-133.5, 71.25], [-133.25, 71.15], [-133.0, 71.25], [-132.75, 71.15], [-132.68, 71.18], [-132.53, 71.53], [-132.0, 71.75], [-131.75, 71.65], [-131.5, 71.75], [-131.25, 71.65], [-131.0, 71.75], [-130.75, 71.65], [-130.5, 71.75], [-130.25, 71.65], [-130.0, 71.75], [-129.75, 71.65], [-129.5, 71.75], [-128.97, 71.53], [-128.82, 71.18], [-128.47, 71.03], [-128.25, 70.5], [-128.35, 70.25], [-128.32, 70.18], [-128.25, 70.15], [-128.0, 70.25], [-127.47, 70.03], [-127.25, 69.5], [-127.47, 68.97], [-128.0, 68.75], [-128.25, 68.85], [-128.5, 68.75], [-128.75, 68.85], [-128.82, 68.82], [-128.97, 68.47], [-129.5, 68.25], [-129.75, 68.35], [-130.0, 68.25], [-130.25, 68.35], [-130.5, 68.25], [-130.75, 68.35], [-131.0, 68.25], [-131.25, 68.35], [-131.5, 68.25], [-131.75, 68.35], [-132.0, 68.25], [-132.25, 68.35], [-132.5, 68.25], [-132.75, 68.35], [-133.0, 68.25], [-133.25, 68.35], [-133.5, 68.25], [-133.75, 68.35], [-133.82, 68.32], [-133.97, 67.97], [-134.5, 67.75], [-134.75, 67.85], [-135.0, 67.75], [-135.53, 67.97], [-135.75, 68.5], [-135.65, 68.75], [-135.75, 69.0], [-135.65, 69.25]], [[-134.18, 69.68], [-134.12, 69.8], [-134.25, 69.85], [-134.37, 69.8], [-134.32, 69.68], [-134.25, 69.65], [-134.18, 69.68]]]]}, "2020-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-135.03, 69.97], [-135.25, 70.5], [-135.03, 71.03], [-134.5, 71.25], [-134.25, 71.15], [-134.0, 71.25], [-133.75, 71.15], [-133.5, 71.25], [-133.25, 71.15], [-133.0, 71.25], [-132.75, 71.15], [-132.68, 71.18], [-132.53, 71.53], [-132.0, 71.75], [-131.75, 71.65], [-131.5, 71.75], [-131.25, 71.65], [-131.0, 71.75], [-130.75, 71.65], [-130.5, 71.75], [-130.25, 71.65], [-130.0, 71.75], [-129.75, 71.65], [-129.5, 71.75], [-128.97, 71.53], [-128.82, 71.18], [-128.47, 71.03], [-128.25, 70.5], [-128.35, 70.25], [-128.32, 70.18], [-128.25, 70.15], [-128.0, 70.25], [-127.47, 70.03], [-127.25, 69.5], [-127.47, 68.97], [-128.0, 68.75], [-128.25, 68.85], [-128.5, 68.75], [-128.75, 68.85], [-128.82, 68.82], [-128.97, 68.47], [-129.5, 68.25], [-129.75, 68.35], [-130.0, 68.25], [-130.25, 68.35], [-130.5, 68.25], [-130.75, 68.35], [-131.0, 68.25], [-131.25, 68.35], [-131.5, 68.25], [-131.75, 68.35], [-132.0, 68.25], [-132.53, 68.47], [-132.68, 68.82], [-133.0, 68.96], [-133.5, 68.75], [-134.03, 68.97], [-134.25, 69.5], [-134.12, 69.8], [-134.25, 69.85], [-134.5, 69.75], [-135.03, 69.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.230464593178397}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.220478232771356}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.919350200746976, 17.095512200828978, 18.073367489177997, 18.001170580432188, 14.625031390842537, 12.01717914372955, 10.377988168568038]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.0732627232415, 19.550703042052646, 20.7370010647237, 20.637080194396674, 20.617628716408944, 19.462323920075164, 19.21252174425757]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.5999777375147275, 6.028833267343238, 6.770486486937215, 6.644050009124653, 6.067612737762195, 6.2845099520482615, 5.511389734039417]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.178518182924279, 7.230361320372708, 9.332063181440105, 8.621937478091525, 10.230464593178397, 9.889734003536603, 9.608557634419867]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.330830774663243, 1.5228018766469553, 1.5869546510042865, 1.501753602080195, 1.6776886384338565, 2.1770393075690433, 1.9757971017355596]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4280674906483093, 1.759928246331711, 1.935977281328291, 1.7251654026778942, 2.4505819434592317, 3.2962616781155347, 2.763125317701752]}}