{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:20.989055", "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": "2016-Sep-23_to_2016-Sep-26_269.0_62.5"}, "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": 2016090002501}, "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": "September 23 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 2016"}, "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": 68241.25199949248}, "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 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": 62.5}, "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": 269.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "269.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 267.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.03, 61.97], [-92.25, 62.5], [-92.03, 63.03], [-91.5, 63.25], [-91.25, 63.15], [-91.18, 63.18], [-91.03, 63.53], [-90.5, 63.75], [-90.25, 63.65], [-90.0, 63.75], [-89.75, 63.65], [-89.68, 63.68], [-89.53, 64.03], [-89.0, 64.25], [-88.75, 64.15], [-88.5, 64.25], [-87.97, 64.03], [-87.82, 63.68], [-87.47, 63.53], [-87.32, 63.18], [-86.97, 63.03], [-86.75, 62.5], [-86.97, 61.97], [-87.32, 61.82], [-87.47, 61.47], [-88.0, 61.25], [-88.25, 61.35], [-88.5, 61.25], [-88.75, 61.35], [-89.0, 61.25], [-89.25, 61.35], [-89.5, 61.25], [-89.75, 61.35], [-90.0, 61.25], [-90.53, 61.47], [-90.68, 61.82], [-90.75, 61.85], [-91.0, 61.75], [-91.25, 61.85], [-91.5, 61.75], [-92.03, 61.97]]]]}, "2016-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.15, 62.25], [-93.25, 62.5], [-93.04, 63.0], [-93.25, 63.5], [-93.03, 64.03], [-92.68, 64.18], [-92.53, 64.53], [-92.0, 64.75], [-91.75, 64.65], [-91.5, 64.75], [-91.25, 64.65], [-91.0, 64.75], [-90.5, 64.54], [-90.0, 64.75], [-89.47, 64.53], [-89.32, 64.18], [-89.25, 64.15], [-89.0, 64.25], [-88.75, 64.15], [-88.5, 64.25], [-87.97, 64.03], [-87.82, 63.68], [-87.47, 63.53], [-87.32, 63.18], [-86.97, 63.03], [-86.75, 62.5], [-86.97, 61.97], [-87.32, 61.82], [-87.47, 61.47], [-88.0, 61.25], [-88.25, 61.35], [-88.5, 61.25], [-88.75, 61.35], [-88.82, 61.32], [-88.97, 60.97], [-89.5, 60.75], [-89.75, 60.85], [-90.0, 60.75], [-90.25, 60.85], [-90.5, 60.75], [-90.75, 60.85], [-91.0, 60.75], [-91.25, 60.85], [-91.5, 60.75], [-91.75, 60.85], [-92.0, 60.75], [-92.25, 60.85], [-92.5, 60.75], [-93.03, 60.97], [-93.25, 61.5], [-93.15, 61.75], [-93.25, 62.0], [-93.15, 62.25]]]]}, "2016-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.15, 62.25], [-93.25, 62.5], [-93.04, 63.0], [-93.25, 63.5], [-93.03, 64.03], [-92.68, 64.18], [-92.53, 64.53], [-92.0, 64.75], [-91.75, 64.65], [-91.5, 64.75], [-91.25, 64.65], [-91.0, 64.75], [-90.5, 64.54], [-90.0, 64.75], [-89.47, 64.53], [-89.32, 64.18], [-89.25, 64.15], [-89.0, 64.25], [-88.75, 64.15], [-88.5, 64.25], [-87.97, 64.03], [-87.82, 63.68], [-87.47, 63.53], [-87.32, 63.18], [-86.97, 63.03], [-86.75, 62.5], [-86.97, 61.97], [-87.32, 61.82], [-87.47, 61.47], [-88.0, 61.25], [-88.25, 61.35], [-88.5, 61.25], [-88.75, 61.35], [-88.82, 61.32], [-88.97, 60.97], [-89.5, 60.75], [-89.75, 60.85], [-90.0, 60.75], [-90.25, 60.85], [-90.5, 60.75], [-90.75, 60.85], [-91.0, 60.75], [-91.25, 60.85], [-91.5, 60.75], [-91.75, 60.85], [-92.0, 60.75], [-92.25, 60.85], [-92.5, 60.75], [-93.03, 60.97], [-93.25, 61.5], [-93.15, 61.75], [-93.25, 62.0], [-93.15, 62.25]]]]}, "2016-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.15, 62.25], [-93.25, 62.5], [-93.04, 63.0], [-93.25, 63.5], [-93.03, 64.03], [-92.68, 64.18], [-92.53, 64.53], [-92.0, 64.75], [-91.75, 64.65], [-91.5, 64.75], [-91.25, 64.65], [-91.0, 64.75], [-90.5, 64.54], [-90.0, 64.75], [-89.47, 64.53], [-89.32, 64.18], [-89.25, 64.15], [-89.0, 64.25], [-88.47, 64.03], [-88.25, 63.5], [-88.46, 63.0], [-88.25, 62.5], [-88.47, 61.97], [-88.87, 61.8], [-88.75, 61.5], [-88.97, 60.97], [-89.5, 60.75], [-89.75, 60.85], [-90.0, 60.75], [-90.25, 60.85], [-90.5, 60.75], [-90.75, 60.85], [-91.0, 60.75], [-91.25, 60.85], [-91.5, 60.75], [-91.75, 60.85], [-92.0, 60.75], [-92.25, 60.85], [-92.5, 60.75], [-93.03, 60.97], [-93.25, 61.5], [-93.15, 61.75], [-93.25, 62.0], [-93.15, 62.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.6977214334912105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.52212833966499}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.068424311008471, 6.4273321010438735, 6.4409667828036845, 6.139013366094389]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.5120954150579, 7.379461317103278, 7.386216113571493, 7.034216164284487]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8699129999859307, 3.505817322679482, 3.6932649998381493, 3.7142701896631]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.061132710523964, 5.6977214334912105, 5.508735292427218, 4.713523764974866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3311912258291436, 1.4599045778815498, 1.487040482976089, 1.4069834398608037]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3895050907487836, 1.812598572524591, 1.7136322258847234, 1.536682018723552]}}