{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:40.468007", "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": "2012-Feb-02_to_2012-Feb-06_271.5_48.5"}, "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": 2012020001820}, "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": "February 02 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 06 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 206798.25838810662}, "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": ["C.North-America", "E.North-America", "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"]}, "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": 48.5}, "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": 271.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 268.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 277.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.53, 48.97], [-91.75, 49.5], [-91.53, 50.03], [-91.0, 50.25], [-90.75, 50.15], [-90.5, 50.25], [-89.97, 50.03], [-89.82, 49.68], [-89.75, 49.65], [-89.5, 49.75], [-89.25, 49.65], [-89.0, 49.75], [-88.75, 49.65], [-88.5, 49.75], [-87.97, 49.53], [-87.75, 49.0], [-87.85, 48.75], [-87.75, 48.5], [-87.97, 47.97], [-88.5, 47.75], [-88.75, 47.85], [-89.0, 47.75], [-89.25, 47.85], [-89.5, 47.75], [-90.03, 47.97], [-90.18, 48.32], [-90.53, 48.47], [-90.68, 48.82], [-90.75, 48.85], [-91.0, 48.75], [-91.53, 48.97]]]]}, "2012-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.53, 48.97], [-91.75, 49.5], [-91.53, 50.03], [-91.0, 50.25], [-90.75, 50.15], [-90.5, 50.25], [-89.97, 50.03], [-89.82, 49.68], [-89.75, 49.65], [-89.5, 49.75], [-89.25, 49.65], [-89.0, 49.75], [-88.75, 49.65], [-88.5, 49.75], [-87.97, 49.53], [-87.75, 49.0], [-87.85, 48.75], [-87.75, 48.5], [-87.97, 47.97], [-88.5, 47.75], [-88.75, 47.85], [-89.0, 47.75], [-89.25, 47.85], [-89.5, 47.75], [-90.03, 47.97], [-90.18, 48.32], [-90.53, 48.47], [-90.68, 48.82], [-90.75, 48.85], [-91.0, 48.75], [-91.53, 48.97]]]]}, "2012-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 50.97], [-92.25, 51.5], [-92.03, 52.03], [-91.5, 52.25], [-91.25, 52.15], [-91.18, 52.18], [-91.03, 52.53], [-90.5, 52.75], [-90.25, 52.65], [-90.0, 52.75], [-89.75, 52.65], [-89.68, 52.68], [-89.65, 52.75], [-89.75, 53.0], [-89.53, 53.53], [-89.0, 53.75], [-88.47, 53.53], [-88.32, 53.18], [-88.25, 53.15], [-88.18, 53.18], [-88.03, 53.53], [-87.5, 53.75], [-86.97, 53.53], [-86.82, 53.18], [-86.75, 53.15], [-86.5, 53.25], [-86.25, 53.15], [-86.0, 53.25], [-85.75, 53.15], [-85.68, 53.18], [-85.53, 53.53], [-85.18, 53.68], [-85.15, 53.75], [-85.18, 53.82], [-85.25, 53.85], [-85.5, 53.75], [-86.03, 53.97], [-86.25, 54.5], [-86.15, 54.75], [-86.25, 55.0], [-86.15, 55.25], [-86.18, 55.32], [-86.25, 55.35], [-86.5, 55.25], [-86.75, 55.35], [-87.0, 55.25], [-87.53, 55.47], [-87.68, 55.82], [-88.03, 55.97], [-88.25, 56.5], [-88.03, 57.03], [-87.5, 57.25], [-87.25, 57.15], [-87.0, 57.25], [-86.75, 57.15], [-86.5, 57.25], [-85.97, 57.03], [-85.82, 56.68], [-85.75, 56.65], [-85.5, 56.75], [-85.25, 56.65], [-85.0, 56.75], [-84.75, 56.65], [-84.5, 56.75], [-83.97, 56.53], [-83.75, 56.0], [-83.85, 55.75], [-83.82, 55.68], [-83.75, 55.65], [-83.5, 55.75], [-82.97, 55.53], [-82.82, 55.18], [-82.47, 55.03], [-82.25, 54.5], [-82.35, 54.25], [-82.25, 54.0], [-82.47, 53.47], [-82.82, 53.32], [-82.97, 52.97], [-83.32, 52.82], [-83.47, 52.47], [-83.82, 52.32], [-83.97, 51.97], [-84.32, 51.82], [-84.47, 51.47], [-84.82, 51.32], [-84.97, 50.97], [-85.32, 50.82], [-85.47, 50.47], [-85.82, 50.32], [-85.85, 50.25], [-85.75, 50.0], [-85.85, 49.75], [-85.75, 49.5], [-85.85, 49.25], [-85.75, 49.0], [-85.97, 48.47], [-86.5, 48.25], [-86.75, 48.35], [-87.0, 48.25], [-87.25, 48.35], [-87.5, 48.25], [-87.8, 48.38], [-87.97, 47.97], [-88.5, 47.75], [-88.75, 47.85], [-89.0, 47.75], [-89.25, 47.85], [-89.5, 47.75], [-90.03, 47.97], [-90.18, 48.32], [-90.53, 48.47], [-90.68, 48.82], [-90.75, 48.85], [-91.0, 48.75], [-91.53, 48.97], [-91.75, 49.5], [-91.53, 50.03], [-91.0, 50.25], [-90.75, 50.15], [-90.62, 50.2], [-90.75, 50.5], [-90.65, 50.75], [-90.68, 50.82], [-90.75, 50.85], [-91.0, 50.75], [-91.25, 50.85], [-91.5, 50.75], [-92.03, 50.97]], [[-89.68, 49.68], [-89.65, 49.75], [-89.68, 49.82], [-89.75, 49.85], [-89.87, 49.8], [-89.82, 49.68], [-89.75, 49.65], [-89.68, 49.68]]]]}, "2012-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 50.97], [-92.25, 51.5], [-92.03, 52.03], [-91.5, 52.25], [-91.25, 52.15], [-91.18, 52.18], [-91.03, 52.53], [-90.5, 52.75], [-90.25, 52.65], [-90.0, 52.75], [-89.75, 52.65], [-89.68, 52.68], [-89.65, 52.75], [-89.75, 53.0], [-89.53, 53.53], [-89.0, 53.75], [-88.47, 53.53], [-88.32, 53.18], [-88.25, 53.15], [-88.18, 53.18], [-88.03, 53.53], [-87.5, 53.75], [-86.97, 53.53], [-86.82, 53.18], [-86.75, 53.15], [-86.5, 53.25], [-86.25, 53.15], [-86.0, 53.25], [-85.75, 53.15], [-85.68, 53.18], [-85.53, 53.53], [-85.18, 53.68], [-85.15, 53.75], [-85.18, 53.82], [-85.25, 53.85], [-85.5, 53.75], [-86.03, 53.97], [-86.25, 54.5], [-86.15, 54.75], [-86.25, 55.0], [-86.15, 55.25], [-86.18, 55.32], [-86.25, 55.35], [-86.5, 55.25], [-86.75, 55.35], [-87.0, 55.25], [-87.53, 55.47], [-87.68, 55.82], [-88.03, 55.97], [-88.25, 56.5], [-88.03, 57.03], [-87.5, 57.25], [-87.25, 57.15], [-87.0, 57.25], [-86.75, 57.15], [-86.5, 57.25], [-85.97, 57.03], [-85.82, 56.68], [-85.75, 56.65], [-85.5, 56.75], [-85.25, 56.65], [-85.0, 56.75], [-84.75, 56.65], [-84.5, 56.75], [-83.97, 56.53], [-83.75, 56.0], [-83.85, 55.75], [-83.82, 55.68], [-83.75, 55.65], [-83.5, 55.75], [-82.97, 55.53], [-82.82, 55.18], [-82.47, 55.03], [-82.25, 54.5], [-82.35, 54.25], [-82.25, 54.0], [-82.47, 53.47], [-82.82, 53.32], [-82.97, 52.97], [-83.32, 52.82], [-83.47, 52.47], [-83.82, 52.32], [-83.97, 51.97], [-84.32, 51.82], [-84.47, 51.47], [-84.82, 51.32], [-84.97, 50.97], [-85.32, 50.82], [-85.47, 50.47], [-85.82, 50.32], [-85.85, 50.25], [-85.75, 50.0], [-85.85, 49.75], [-85.75, 49.5], [-85.85, 49.25], [-85.75, 49.0], [-85.97, 48.47], [-86.5, 48.25], [-86.75, 48.35], [-87.0, 48.25], [-87.25, 48.35], [-87.5, 48.25], [-87.8, 48.38], [-87.97, 47.97], [-88.5, 47.75], [-89.03, 47.97], [-89.25, 48.5], [-89.15, 48.75], [-89.18, 48.82], [-89.53, 48.97], [-89.75, 49.5], [-89.65, 49.75], [-89.68, 49.82], [-89.75, 49.85], [-90.0, 49.75], [-90.53, 49.97], [-90.75, 50.5], [-90.65, 50.75], [-90.68, 50.82], [-90.75, 50.85], [-91.0, 50.75], [-91.25, 50.85], [-91.5, 50.75], [-92.03, 50.97]]]]}, "2012-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 50.97], [-92.25, 51.5], [-92.03, 52.03], [-91.5, 52.25], [-91.25, 52.15], [-91.18, 52.18], [-91.03, 52.53], [-90.5, 52.75], [-90.25, 52.65], [-90.0, 52.75], [-89.75, 52.65], [-89.68, 52.68], [-89.65, 52.75], [-89.75, 53.0], [-89.53, 53.53], [-89.0, 53.75], [-88.47, 53.53], [-88.32, 53.18], [-88.25, 53.15], [-88.18, 53.18], [-88.03, 53.53], [-87.5, 53.75], [-86.97, 53.53], [-86.82, 53.18], [-86.75, 53.15], [-86.5, 53.25], [-86.25, 53.15], [-86.0, 53.25], [-85.75, 53.15], [-85.68, 53.18], [-85.53, 53.53], [-85.18, 53.68], [-85.15, 53.75], [-85.18, 53.82], [-85.25, 53.85], [-85.5, 53.75], [-86.03, 53.97], [-86.25, 54.5], [-86.15, 54.75], [-86.25, 55.0], [-86.15, 55.25], [-86.18, 55.32], [-86.25, 55.35], [-86.5, 55.25], [-86.75, 55.35], [-87.0, 55.25], [-87.53, 55.47], [-87.68, 55.82], [-88.03, 55.97], [-88.25, 56.5], [-88.03, 57.03], [-87.5, 57.25], [-87.25, 57.15], [-87.0, 57.25], [-86.75, 57.15], [-86.5, 57.25], [-85.97, 57.03], [-85.82, 56.68], [-85.75, 56.65], [-85.5, 56.75], [-85.25, 56.65], [-85.0, 56.75], [-84.75, 56.65], [-84.5, 56.75], [-83.97, 56.53], [-83.75, 56.0], [-83.85, 55.75], [-83.82, 55.68], [-83.75, 55.65], [-83.5, 55.75], [-82.97, 55.53], [-82.82, 55.18], [-82.47, 55.03], [-82.25, 54.5], [-82.35, 54.25], [-82.25, 54.0], [-82.47, 53.47], [-82.82, 53.32], [-82.97, 52.97], [-83.32, 52.82], [-83.47, 52.47], [-83.82, 52.32], [-83.97, 51.97], [-84.32, 51.82], [-84.47, 51.47], [-84.82, 51.32], [-84.97, 50.97], [-85.32, 50.82], [-85.47, 50.47], [-85.82, 50.32], [-85.85, 50.25], [-85.75, 50.0], [-85.85, 49.75], [-85.75, 49.5], [-85.85, 49.25], [-85.75, 49.0], [-85.97, 48.47], [-86.5, 48.25], [-86.75, 48.35], [-87.0, 48.25], [-87.25, 48.35], [-87.5, 48.25], [-87.8, 48.38], [-87.97, 47.97], [-88.5, 47.75], [-89.03, 47.97], [-89.25, 48.5], [-89.15, 48.75], [-89.18, 48.82], [-89.53, 48.97], [-89.75, 49.5], [-89.65, 49.75], [-89.68, 49.82], [-89.75, 49.85], [-90.0, 49.75], [-90.53, 49.97], [-90.75, 50.5], [-90.65, 50.75], [-90.68, 50.82], [-90.75, 50.85], [-91.0, 50.75], [-91.25, 50.85], [-91.5, 50.75], [-92.03, 50.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 18.423162377084253}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.267876460061727}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.7593523471920207, -1.8639658943653785, -6.278630052212634, -3.9236612750278255, -8.968444660106911]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.0942636184079788, -0.6373630914816317, -1.7448810137904616, -2.403926607392634, -2.4007660330603358]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.997460436988616, 11.57454693551235, 12.258943568814606, 14.818677053435922, 9.811658171339865]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.827754732356198, 12.298210375171493, 14.934262797165928, 18.423162377084253, 11.477822493034523]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5199940904308094, 1.4686807023299624, 1.638322824094904, 2.0080962421290502, 1.4037362021234054]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.598618600888302, 1.6295186882451498, 1.9824112987650129, 2.5414441136221457, 1.639756870177061]}}