{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:12.241829", "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-Aug-31_to_2016-Sep-02_255.0_49.0"}, "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": 2016080003236}, "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": "August 31 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 2016"}, "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": 77750.35614681742}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "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": 49.0}, "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": 255.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "255.0\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": 256.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.15, 46.25], [-108.25, 46.5], [-108.15, 46.75], [-108.25, 47.0], [-108.03, 47.53], [-107.68, 47.68], [-107.53, 48.03], [-107.18, 48.18], [-107.03, 48.53], [-106.5, 48.75], [-106.25, 48.65], [-106.18, 48.68], [-106.03, 49.03], [-105.68, 49.18], [-105.53, 49.53], [-105.0, 49.75], [-104.75, 49.65], [-104.5, 49.75], [-103.97, 49.53], [-103.82, 49.18], [-103.47, 49.03], [-103.25, 48.5], [-103.35, 48.25], [-103.25, 48.0], [-103.47, 47.47], [-103.82, 47.32], [-103.97, 46.97], [-104.32, 46.82], [-104.47, 46.47], [-104.82, 46.32], [-104.97, 45.97], [-105.32, 45.82], [-105.47, 45.47], [-105.82, 45.32], [-105.85, 45.25], [-105.75, 45.0], [-105.97, 44.47], [-106.5, 44.25], [-107.03, 44.47], [-107.18, 44.82], [-107.25, 44.85], [-107.5, 44.75], [-108.03, 44.97], [-108.25, 45.5], [-108.15, 45.75], [-108.25, 46.0], [-108.15, 46.25]]]]}, "2016-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.15, 46.25], [-108.25, 46.5], [-108.15, 46.75], [-108.25, 47.0], [-108.03, 47.53], [-107.68, 47.68], [-107.53, 48.03], [-107.18, 48.18], [-107.03, 48.53], [-106.5, 48.75], [-106.25, 48.65], [-106.18, 48.68], [-106.03, 49.03], [-105.68, 49.18], [-105.53, 49.53], [-105.0, 49.75], [-104.75, 49.65], [-104.5, 49.75], [-103.97, 49.53], [-103.82, 49.18], [-103.47, 49.03], [-103.25, 48.5], [-103.35, 48.25], [-103.25, 48.0], [-103.47, 47.47], [-103.82, 47.32], [-103.97, 46.97], [-104.32, 46.82], [-104.47, 46.47], [-104.82, 46.32], [-104.97, 45.97], [-105.32, 45.82], [-105.47, 45.47], [-105.82, 45.32], [-105.85, 45.25], [-105.75, 45.0], [-105.97, 44.47], [-106.5, 44.25], [-107.03, 44.47], [-107.18, 44.82], [-107.25, 44.85], [-107.5, 44.75], [-108.03, 44.97], [-108.25, 45.5], [-108.15, 45.75], [-108.25, 46.0], [-108.15, 46.25]]]]}, "2016-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-108.15, 46.25], [-108.25, 46.5], [-108.15, 46.75], [-108.25, 47.0], [-108.03, 47.53], [-107.68, 47.68], [-107.53, 48.03], [-107.18, 48.18], [-107.03, 48.53], [-106.5, 48.75], [-106.25, 48.65], [-106.18, 48.68], [-106.03, 49.03], [-105.68, 49.18], [-105.53, 49.53], [-105.0, 49.75], [-104.75, 49.65], [-104.5, 49.75], [-103.97, 49.53], [-103.82, 49.18], [-103.47, 49.03], [-103.25, 48.5], [-103.35, 48.25], [-103.25, 48.0], [-103.47, 47.47], [-103.82, 47.32], [-103.97, 46.97], [-104.32, 46.82], [-104.47, 46.47], [-104.82, 46.32], [-104.97, 45.97], [-105.32, 45.82], [-105.47, 45.47], [-105.82, 45.32], [-105.85, 45.25], [-105.75, 45.0], [-105.97, 44.47], [-106.5, 44.25], [-107.03, 44.47], [-107.18, 44.82], [-107.25, 44.85], [-107.5, 44.75], [-108.03, 44.97], [-108.25, 45.5], [-108.15, 45.75], [-108.25, 46.0], [-108.15, 46.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.492371762546213}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.546454556012514}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.125723891073847, 26.514943247476594, 26.22312341847561]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.302073741855168, 28.45676128923634, 27.935974820793604]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.10118160173599, 6.759401048425957, 6.7787810178755965]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.24052423770388, 8.325396281417682, 8.492371762546213]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4001266200281286, 1.537055201362793, 1.55499326966804]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5177524927748371, 2.0272736779458236, 2.1759770398114506]}}