{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:12.218073", "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": "2022-May-27_to_2022-May-30_297.0_44.0"}, "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": 2022050002724}, "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": "May 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 30 2022"}, "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": 79153.56933725749}, "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": ["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": ["Bay of Fundy", "Gulf of St. Lawrence", "North Atlantic 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": 44.0}, "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": 297.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.53, 44.47], [-66.75, 45.0], [-66.53, 45.53], [-66.0, 45.75], [-65.75, 45.65], [-65.5, 45.75], [-64.97, 45.53], [-64.75, 45.0], [-64.93, 44.57], [-64.5, 44.75], [-64.25, 44.65], [-64.0, 44.75], [-63.75, 44.65], [-63.68, 44.68], [-63.53, 45.03], [-63.0, 45.25], [-62.75, 45.15], [-62.5, 45.25], [-62.25, 45.15], [-62.0, 45.25], [-61.5, 45.04], [-61.0, 45.25], [-60.47, 45.03], [-60.25, 44.5], [-60.47, 43.97], [-61.0, 43.75], [-61.5, 43.96], [-62.0, 43.75], [-62.25, 43.85], [-62.32, 43.82], [-62.35, 43.75], [-62.25, 43.5], [-62.47, 42.97], [-63.0, 42.75], [-63.25, 42.85], [-63.5, 42.75], [-63.75, 42.85], [-64.0, 42.75], [-64.25, 42.85], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75], [-65.25, 42.85], [-65.5, 42.75], [-66.03, 42.97], [-66.25, 43.5], [-66.03, 44.03], [-65.5, 44.25], [-65.75, 44.35], [-66.0, 44.25], [-66.53, 44.47]], [[-65.25, 44.15], [-65.18, 44.18], [-65.07, 44.43], [-65.5, 44.25], [-65.25, 44.15]]]]}, "2022-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.25, 45.0], [-67.03, 45.53], [-66.5, 45.75], [-66.25, 45.65], [-66.0, 45.75], [-65.75, 45.65], [-65.68, 45.68], [-65.53, 46.03], [-65.12, 46.2], [-65.25, 46.5], [-65.03, 47.03], [-64.5, 47.25], [-63.97, 47.03], [-63.82, 46.68], [-63.75, 46.65], [-63.5, 46.75], [-63.25, 46.65], [-63.0, 46.75], [-62.47, 46.53], [-62.25, 46.0], [-62.37, 45.7], [-62.0, 45.54], [-61.68, 45.68], [-61.53, 46.03], [-61.0, 46.25], [-60.47, 46.03], [-60.25, 45.5], [-60.46, 45.0], [-60.25, 44.5], [-60.47, 43.97], [-60.82, 43.82], [-60.97, 43.47], [-61.5, 43.25], [-62.03, 43.47], [-62.18, 43.82], [-62.25, 43.85], [-62.32, 43.82], [-62.35, 43.75], [-62.25, 43.5], [-62.47, 42.97], [-63.0, 42.75], [-63.25, 42.85], [-63.5, 42.75], [-63.75, 42.85], [-64.0, 42.75], [-64.25, 42.85], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75], [-65.25, 42.85], [-65.5, 42.75], [-66.03, 42.97], [-66.18, 43.32], [-66.53, 43.47], [-66.75, 44.0], [-66.62, 44.3], [-67.03, 44.47], [-67.25, 45.0]], [[-65.18, 44.18], [-65.15, 44.25], [-65.18, 44.32], [-65.25, 44.35], [-65.37, 44.3], [-65.32, 44.18], [-65.25, 44.15], [-65.18, 44.18]], [[-63.18, 45.18], [-63.12, 45.3], [-63.25, 45.35], [-63.32, 45.32], [-63.35, 45.25], [-63.32, 45.18], [-63.25, 45.15], [-63.18, 45.18]]]]}, "2022-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.25, 45.0], [-67.03, 45.53], [-66.5, 45.75], [-66.25, 45.65], [-66.0, 45.75], [-65.75, 45.65], [-65.68, 45.68], [-65.53, 46.03], [-65.12, 46.2], [-65.25, 46.5], [-65.03, 47.03], [-64.5, 47.25], [-63.97, 47.03], [-63.82, 46.68], [-63.75, 46.65], [-63.5, 46.75], [-63.25, 46.65], [-63.0, 46.75], [-62.47, 46.53], [-62.25, 46.0], [-62.37, 45.7], [-62.0, 45.54], [-61.68, 45.68], [-61.53, 46.03], [-61.0, 46.25], [-60.47, 46.03], [-60.25, 45.5], [-60.46, 45.0], [-60.25, 44.5], [-60.47, 43.97], [-60.82, 43.82], [-60.97, 43.47], [-61.5, 43.25], [-62.03, 43.47], [-62.18, 43.82], [-62.25, 43.85], [-62.32, 43.82], [-62.35, 43.75], [-62.25, 43.5], [-62.47, 42.97], [-63.0, 42.75], [-63.25, 42.85], [-63.5, 42.75], [-63.75, 42.85], [-64.0, 42.75], [-64.25, 42.85], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75], [-65.25, 42.85], [-65.5, 42.75], [-66.03, 42.97], [-66.18, 43.32], [-66.53, 43.47], [-66.75, 44.0], [-66.62, 44.3], [-67.03, 44.47], [-67.25, 45.0]], [[-65.18, 44.18], [-65.15, 44.25], [-65.18, 44.32], [-65.25, 44.35], [-65.37, 44.3], [-65.32, 44.18], [-65.25, 44.15], [-65.18, 44.18]], [[-63.18, 45.18], [-63.12, 45.3], [-63.25, 45.35], [-63.32, 45.32], [-63.35, 45.25], [-63.32, 45.18], [-63.25, 45.15], [-63.18, 45.18]]]]}, "2022-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.25, 45.0], [-67.03, 45.53], [-66.5, 45.75], [-66.25, 45.65], [-66.0, 45.75], [-65.75, 45.65], [-65.68, 45.68], [-65.53, 46.03], [-65.12, 46.2], [-65.25, 46.5], [-65.03, 47.03], [-64.5, 47.25], [-63.97, 47.03], [-63.82, 46.68], [-63.75, 46.65], [-63.5, 46.75], [-63.25, 46.65], [-63.0, 46.75], [-62.47, 46.53], [-62.25, 46.0], [-62.37, 45.7], [-62.0, 45.54], [-61.68, 45.68], [-61.53, 46.03], [-61.0, 46.25], [-60.47, 46.03], [-60.25, 45.5], [-60.46, 45.0], [-60.25, 44.5], [-60.47, 43.97], [-60.82, 43.82], [-60.97, 43.47], [-61.5, 43.25], [-62.03, 43.47], [-62.18, 43.82], [-62.25, 43.85], [-62.32, 43.82], [-62.35, 43.75], [-62.25, 43.5], [-62.47, 42.97], [-63.0, 42.75], [-63.25, 42.85], [-63.5, 42.75], [-63.75, 42.85], [-64.0, 42.75], [-64.25, 42.85], [-64.5, 42.75], [-64.75, 42.85], [-65.0, 42.75], [-65.25, 42.85], [-65.5, 42.75], [-66.03, 42.97], [-66.18, 43.32], [-66.53, 43.47], [-66.75, 44.0], [-66.62, 44.3], [-67.03, 44.47], [-67.25, 45.0]], [[-65.18, 44.18], [-65.15, 44.25], [-65.18, 44.32], [-65.25, 44.35], [-65.37, 44.3], [-65.32, 44.18], [-65.25, 44.15], [-65.18, 44.18]], [[-63.18, 45.18], [-63.12, 45.3], [-63.25, 45.35], [-63.32, 45.32], [-63.35, 45.25], [-63.32, 45.18], [-63.25, 45.15], [-63.18, 45.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.30350170858776}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.692538278905042}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.352642087851734, 13.60932825624377, 13.03673193877205, 13.345983353316115]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.263100222595256, 17.99056735827287, 17.91288799783024, 18.68598641034322]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8545797833401814, 4.203486765234895, 3.5258243201525783, 3.7207297493564795]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.317780831808477, 6.182210953670165, 5.588820947635668, 6.30350170858776]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7746124126678953, 2.1731731964148198, 1.7719843934580548, 1.9149155226518222]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0436802339140727, 2.738655576656107, 2.5879040505938304, 2.9351053795024966]}}