{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:04.371231", "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-Jul-20_to_2012-Jul-22_286.5_62.0"}, "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": 2012070002658}, "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": "July 20 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 22 2012"}, "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": 55654.503100078364}, "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 Strait"]}, "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": 62.0}, "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": 286.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "286.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 59.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.03, 62.53], [-75.5, 62.75], [-75.0, 62.54], [-74.5, 62.75], [-74.25, 62.65], [-74.0, 62.75], [-73.75, 62.65], [-73.5, 62.75], [-73.25, 62.65], [-73.0, 62.75], [-72.75, 62.65], [-72.5, 62.75], [-71.97, 62.53], [-71.82, 62.18], [-71.47, 62.03], [-71.32, 61.68], [-70.97, 61.53], [-70.82, 61.18], [-70.75, 61.15], [-70.5, 61.25], [-70.25, 61.15], [-70.0, 61.25], [-69.47, 61.03], [-69.25, 60.5], [-69.35, 60.25], [-69.25, 60.0], [-69.35, 59.75], [-69.25, 59.5], [-69.47, 58.97], [-70.0, 58.75], [-70.25, 58.85], [-70.5, 58.75], [-70.75, 58.85], [-71.0, 58.75], [-71.25, 58.85], [-71.5, 58.75], [-72.03, 58.97], [-72.18, 59.32], [-72.53, 59.47], [-72.68, 59.82], [-72.75, 59.85], [-73.0, 59.75], [-73.53, 59.97], [-73.68, 60.32], [-73.75, 60.35], [-74.0, 60.25], [-74.25, 60.35], [-74.5, 60.25], [-75.03, 60.47], [-75.18, 60.82], [-75.25, 60.85], [-75.5, 60.75], [-76.03, 60.97], [-76.25, 61.5], [-76.15, 61.75], [-76.25, 62.0], [-76.03, 62.53]]]]}, "2012-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.03, 62.53], [-75.5, 62.75], [-75.0, 62.54], [-74.5, 62.75], [-74.25, 62.65], [-74.0, 62.75], [-73.75, 62.65], [-73.5, 62.75], [-73.25, 62.65], [-73.0, 62.75], [-72.75, 62.65], [-72.5, 62.75], [-71.97, 62.53], [-71.82, 62.18], [-71.47, 62.03], [-71.32, 61.68], [-70.97, 61.53], [-70.82, 61.18], [-70.75, 61.15], [-70.5, 61.25], [-70.25, 61.15], [-70.0, 61.25], [-69.47, 61.03], [-69.25, 60.5], [-69.35, 60.25], [-69.25, 60.0], [-69.35, 59.75], [-69.25, 59.5], [-69.47, 58.97], [-70.0, 58.75], [-70.25, 58.85], [-70.5, 58.75], [-70.75, 58.85], [-71.0, 58.75], [-71.25, 58.85], [-71.5, 58.75], [-72.03, 58.97], [-72.18, 59.32], [-72.53, 59.47], [-72.68, 59.82], [-72.75, 59.85], [-73.0, 59.75], [-73.53, 59.97], [-73.68, 60.32], [-73.75, 60.35], [-74.0, 60.25], [-74.25, 60.35], [-74.5, 60.25], [-75.03, 60.47], [-75.18, 60.82], [-75.25, 60.85], [-75.5, 60.75], [-76.03, 60.97], [-76.25, 61.5], [-76.15, 61.75], [-76.25, 62.0], [-76.03, 62.53]]]]}, "2012-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.03, 62.53], [-75.5, 62.75], [-75.0, 62.54], [-74.5, 62.75], [-74.25, 62.65], [-74.0, 62.75], [-73.75, 62.65], [-73.5, 62.75], [-73.25, 62.65], [-73.0, 62.75], [-72.75, 62.65], [-72.5, 62.75], [-71.97, 62.53], [-71.82, 62.18], [-71.47, 62.03], [-71.32, 61.68], [-70.97, 61.53], [-70.82, 61.18], [-70.75, 61.15], [-70.5, 61.25], [-70.25, 61.15], [-70.0, 61.25], [-69.47, 61.03], [-69.25, 60.5], [-69.35, 60.25], [-69.25, 60.0], [-69.35, 59.75], [-69.25, 59.5], [-69.47, 58.97], [-70.0, 58.75], [-70.25, 58.85], [-70.5, 58.75], [-70.75, 58.85], [-71.0, 58.75], [-71.25, 58.85], [-71.5, 58.75], [-72.03, 58.97], [-72.18, 59.32], [-72.53, 59.47], [-72.68, 59.82], [-72.75, 59.85], [-73.0, 59.75], [-73.53, 59.97], [-73.68, 60.32], [-73.75, 60.35], [-74.0, 60.25], [-74.25, 60.35], [-74.5, 60.25], [-75.03, 60.47], [-75.18, 60.82], [-75.25, 60.85], [-75.5, 60.75], [-76.03, 60.97], [-76.25, 61.5], [-76.15, 61.75], [-76.25, 62.0], [-76.03, 62.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.971382848084772}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.359840338380397}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.424392121685571, 17.094427688409837, 16.811919680116375]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.722350314440177, 18.933715311110006, 18.11999704049748]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.579474538677857, 7.036360185800891, 6.463686290662443]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.730269503597924, 7.971382848084772, 7.909032851221241]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5905088080051004, 1.9581635157967918, 1.79159926515808]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8251989518281457, 2.1463152559580405, 2.2429227673256227]}}