{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:46.334845", "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": "2011-Oct-30_to_2011-Nov-01_257.5_64.0"}, "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": 2011100002894}, "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": "October 30 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 01 2011"}, "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": 77504.38721046834}, "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", "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": []}, "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": 64.0}, "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": 257.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 252.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 258.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.15, 64.25], [-108.25, 64.5], [-108.03, 65.03], [-107.5, 65.25], [-107.25, 65.15], [-107.0, 65.25], [-106.75, 65.15], [-106.5, 65.25], [-105.97, 65.03], [-105.82, 64.68], [-105.75, 64.65], [-105.5, 64.75], [-105.25, 64.65], [-105.0, 64.75], [-104.75, 64.65], [-104.5, 64.75], [-104.25, 64.65], [-104.0, 64.75], [-103.75, 64.65], [-103.5, 64.75], [-103.25, 64.65], [-103.0, 64.75], [-102.75, 64.65], [-102.5, 64.75], [-101.97, 64.53], [-101.82, 64.18], [-101.47, 64.03], [-101.25, 63.5], [-101.47, 62.97], [-102.0, 62.75], [-102.25, 62.85], [-102.37, 62.8], [-102.32, 62.68], [-101.97, 62.53], [-101.82, 62.18], [-101.47, 62.03], [-101.32, 61.68], [-100.97, 61.53], [-100.75, 61.0], [-100.97, 60.47], [-101.32, 60.32], [-101.47, 59.97], [-102.0, 59.75], [-102.25, 59.85], [-102.5, 59.75], [-102.75, 59.85], [-103.0, 59.75], [-103.53, 59.97], [-103.75, 60.5], [-103.62, 60.8], [-104.03, 60.97], [-104.18, 61.32], [-104.25, 61.35], [-104.5, 61.25], [-104.75, 61.35], [-105.0, 61.25], [-105.53, 61.47], [-105.68, 61.82], [-106.03, 61.97], [-106.18, 62.32], [-106.25, 62.35], [-106.5, 62.25], [-107.03, 62.47], [-107.18, 62.82], [-107.25, 62.85], [-107.5, 62.75], [-108.03, 62.97], [-108.25, 63.5], [-108.15, 63.75], [-108.25, 64.0], [-108.15, 64.25]]]]}, "2011-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.15, 64.25], [-108.25, 64.5], [-108.03, 65.03], [-107.5, 65.25], [-107.25, 65.15], [-107.0, 65.25], [-106.75, 65.15], [-106.5, 65.25], [-105.97, 65.03], [-105.82, 64.68], [-105.75, 64.65], [-105.5, 64.75], [-105.25, 64.65], [-105.0, 64.75], [-104.75, 64.65], [-104.5, 64.75], [-104.25, 64.65], [-104.0, 64.75], [-103.75, 64.65], [-103.5, 64.75], [-103.25, 64.65], [-103.0, 64.75], [-102.75, 64.65], [-102.5, 64.75], [-101.97, 64.53], [-101.82, 64.18], [-101.47, 64.03], [-101.25, 63.5], [-101.47, 62.97], [-102.0, 62.75], [-102.25, 62.85], [-102.37, 62.8], [-102.32, 62.68], [-101.97, 62.53], [-101.82, 62.18], [-101.47, 62.03], [-101.32, 61.68], [-100.97, 61.53], [-100.75, 61.0], [-100.97, 60.47], [-101.32, 60.32], [-101.47, 59.97], [-102.0, 59.75], [-102.25, 59.85], [-102.5, 59.75], [-102.75, 59.85], [-103.0, 59.75], [-103.53, 59.97], [-103.75, 60.5], [-103.62, 60.8], [-104.03, 60.97], [-104.18, 61.32], [-104.25, 61.35], [-104.5, 61.25], [-104.75, 61.35], [-105.0, 61.25], [-105.53, 61.47], [-105.68, 61.82], [-106.03, 61.97], [-106.18, 62.32], [-106.25, 62.35], [-106.5, 62.25], [-107.03, 62.47], [-107.18, 62.82], [-107.25, 62.85], [-107.5, 62.75], [-108.03, 62.97], [-108.25, 63.5], [-108.15, 63.75], [-108.25, 64.0], [-108.15, 64.25]]]]}, "2011-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.15, 64.25], [-108.25, 64.5], [-108.03, 65.03], [-107.5, 65.25], [-107.25, 65.15], [-107.0, 65.25], [-106.75, 65.15], [-106.5, 65.25], [-105.97, 65.03], [-105.82, 64.68], [-105.75, 64.65], [-105.5, 64.75], [-105.25, 64.65], [-105.0, 64.75], [-104.75, 64.65], [-104.5, 64.75], [-104.25, 64.65], [-104.0, 64.75], [-103.75, 64.65], [-103.5, 64.75], [-103.25, 64.65], [-103.0, 64.75], [-102.75, 64.65], [-102.5, 64.75], [-101.97, 64.53], [-101.82, 64.18], [-101.47, 64.03], [-101.25, 63.5], [-101.47, 62.97], [-102.0, 62.75], [-102.25, 62.85], [-102.37, 62.8], [-102.32, 62.68], [-101.97, 62.53], [-101.82, 62.18], [-101.47, 62.03], [-101.32, 61.68], [-100.97, 61.53], [-100.75, 61.0], [-100.97, 60.47], [-101.32, 60.32], [-101.47, 59.97], [-102.0, 59.75], [-102.25, 59.85], [-102.5, 59.75], [-102.75, 59.85], [-103.0, 59.75], [-103.53, 59.97], [-103.75, 60.5], [-103.62, 60.8], [-104.03, 60.97], [-104.18, 61.32], [-104.25, 61.35], [-104.5, 61.25], [-104.75, 61.35], [-105.0, 61.25], [-105.53, 61.47], [-105.68, 61.82], [-106.03, 61.97], [-106.18, 62.32], [-106.25, 62.35], [-106.5, 62.25], [-107.03, 62.47], [-107.18, 62.82], [-107.25, 62.85], [-107.5, 62.75], [-108.03, 62.97], [-108.25, 63.5], [-108.15, 63.75], [-108.25, 64.0], [-108.15, 64.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.335227115349255}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.698460532257899}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.7635893322331526, 0.17749581461316666, -2.7867686362715745]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.24351600960079622, 1.5905668866993778, -0.9932516306483308]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.814731357399573, 11.392834461396985, 8.887815777977144]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.507599226864045, 13.335227115349255, 11.111296934550865]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4666219672936922, 1.8705099936251217, 1.4440469132583569]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6617596366564156, 2.0916842639970867, 1.7593705630513614]}}