{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:29:10.219865", "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-Jan-23_to_2022-Jan-25_210.0_68.5"}, "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": 2022010002503}, "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": "January 23 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 25 2022"}, "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": 55309.15195551889}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 68.5}, "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": 210.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "210.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 202.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 213.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 67.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 69.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-158.03, 68.47], [-158.25, 69.0], [-158.03, 69.53], [-157.5, 69.75], [-157.25, 69.65], [-157.0, 69.75], [-156.75, 69.65], [-156.5, 69.75], [-156.25, 69.65], [-156.0, 69.75], [-155.75, 69.65], [-155.5, 69.75], [-155.25, 69.65], [-155.0, 69.75], [-154.75, 69.65], [-154.5, 69.75], [-154.25, 69.65], [-154.0, 69.75], [-153.75, 69.65], [-153.5, 69.75], [-153.25, 69.65], [-153.0, 69.75], [-152.75, 69.65], [-152.5, 69.75], [-151.97, 69.53], [-151.82, 69.18], [-151.75, 69.15], [-151.5, 69.25], [-151.25, 69.15], [-151.0, 69.25], [-150.75, 69.15], [-150.68, 69.18], [-150.53, 69.53], [-150.0, 69.75], [-149.75, 69.65], [-149.5, 69.75], [-149.25, 69.65], [-149.0, 69.75], [-148.75, 69.65], [-148.5, 69.75], [-148.0, 69.54], [-147.68, 69.68], [-147.53, 70.03], [-147.0, 70.25], [-146.47, 70.03], [-146.25, 69.5], [-146.35, 69.25], [-146.25, 69.0], [-146.35, 68.75], [-146.25, 68.5], [-146.47, 67.97], [-147.0, 67.75], [-147.25, 67.85], [-147.5, 67.75], [-147.75, 67.85], [-147.82, 67.82], [-147.97, 67.47], [-148.5, 67.25], [-148.75, 67.35], [-149.0, 67.25], [-149.25, 67.35], [-149.5, 67.25], [-149.75, 67.35], [-150.0, 67.25], [-150.25, 67.35], [-150.5, 67.25], [-150.75, 67.35], [-151.0, 67.25], [-151.25, 67.35], [-151.5, 67.25], [-151.75, 67.35], [-152.0, 67.25], [-152.25, 67.35], [-152.5, 67.25], [-153.03, 67.47], [-153.18, 67.82], [-153.25, 67.85], [-153.5, 67.75], [-153.75, 67.85], [-154.0, 67.75], [-154.25, 67.85], [-154.32, 67.82], [-154.47, 67.47], [-155.0, 67.25], [-155.25, 67.35], [-155.5, 67.25], [-156.03, 67.47], [-156.18, 67.82], [-156.25, 67.85], [-156.5, 67.75], [-157.03, 67.97], [-157.18, 68.32], [-157.25, 68.35], [-157.5, 68.25], [-158.03, 68.47]]]]}, "2022-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-158.03, 68.47], [-158.25, 69.0], [-158.03, 69.53], [-157.5, 69.75], [-157.25, 69.65], [-157.0, 69.75], [-156.75, 69.65], [-156.5, 69.75], [-156.25, 69.65], [-156.0, 69.75], [-155.75, 69.65], [-155.5, 69.75], [-155.25, 69.65], [-155.0, 69.75], [-154.75, 69.65], [-154.5, 69.75], [-154.25, 69.65], [-154.0, 69.75], [-153.75, 69.65], [-153.5, 69.75], [-153.25, 69.65], [-153.0, 69.75], [-152.75, 69.65], [-152.5, 69.75], [-151.97, 69.53], [-151.82, 69.18], [-151.75, 69.15], [-151.5, 69.25], [-151.25, 69.15], [-151.0, 69.25], [-150.75, 69.15], [-150.68, 69.18], [-150.53, 69.53], [-150.0, 69.75], [-149.75, 69.65], [-149.5, 69.75], [-149.25, 69.65], [-149.0, 69.75], [-148.75, 69.65], [-148.5, 69.75], [-148.0, 69.54], [-147.68, 69.68], [-147.53, 70.03], [-147.0, 70.25], [-146.47, 70.03], [-146.25, 69.5], [-146.35, 69.25], [-146.25, 69.0], [-146.35, 68.75], [-146.25, 68.5], [-146.47, 67.97], [-147.0, 67.75], [-147.25, 67.85], [-147.5, 67.75], [-147.75, 67.85], [-147.82, 67.82], [-147.97, 67.47], [-148.5, 67.25], [-148.75, 67.35], [-149.0, 67.25], [-149.25, 67.35], [-149.5, 67.25], [-149.75, 67.35], [-150.0, 67.25], [-150.25, 67.35], [-150.5, 67.25], [-150.75, 67.35], [-151.0, 67.25], [-151.25, 67.35], [-151.5, 67.25], [-151.75, 67.35], [-152.0, 67.25], [-152.25, 67.35], [-152.5, 67.25], [-153.03, 67.47], [-153.18, 67.82], [-153.25, 67.85], [-153.5, 67.75], [-153.75, 67.85], [-154.0, 67.75], [-154.25, 67.85], [-154.32, 67.82], [-154.47, 67.47], [-155.0, 67.25], [-155.25, 67.35], [-155.5, 67.25], [-156.03, 67.47], [-156.18, 67.82], [-156.25, 67.85], [-156.5, 67.75], [-157.03, 67.97], [-157.18, 68.32], [-157.25, 68.35], [-157.5, 68.25], [-158.03, 68.47]]]]}, "2022-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-158.03, 68.47], [-158.25, 69.0], [-158.03, 69.53], [-157.5, 69.75], [-157.25, 69.65], [-157.0, 69.75], [-156.75, 69.65], [-156.5, 69.75], [-156.25, 69.65], [-156.0, 69.75], [-155.75, 69.65], [-155.5, 69.75], [-155.25, 69.65], [-155.0, 69.75], [-154.75, 69.65], [-154.5, 69.75], [-154.25, 69.65], [-154.0, 69.75], [-153.75, 69.65], [-153.5, 69.75], [-153.25, 69.65], [-153.0, 69.75], [-152.75, 69.65], [-152.5, 69.75], [-151.97, 69.53], [-151.82, 69.18], [-151.75, 69.15], [-151.5, 69.25], [-151.25, 69.15], [-151.0, 69.25], [-150.75, 69.15], [-150.68, 69.18], [-150.53, 69.53], [-150.0, 69.75], [-149.75, 69.65], [-149.5, 69.75], [-149.25, 69.65], [-149.0, 69.75], [-148.75, 69.65], [-148.5, 69.75], [-148.0, 69.54], [-147.68, 69.68], [-147.53, 70.03], [-147.0, 70.25], [-146.47, 70.03], [-146.25, 69.5], [-146.35, 69.25], [-146.25, 69.0], [-146.35, 68.75], [-146.25, 68.5], [-146.47, 67.97], [-147.0, 67.75], [-147.25, 67.85], [-147.5, 67.75], [-147.75, 67.85], [-147.82, 67.82], [-147.97, 67.47], [-148.5, 67.25], [-148.75, 67.35], [-149.0, 67.25], [-149.25, 67.35], [-149.5, 67.25], [-149.75, 67.35], [-150.0, 67.25], [-150.25, 67.35], [-150.5, 67.25], [-150.75, 67.35], [-151.0, 67.25], [-151.25, 67.35], [-151.5, 67.25], [-151.75, 67.35], [-152.0, 67.25], [-152.25, 67.35], [-152.5, 67.25], [-153.03, 67.47], [-153.18, 67.82], [-153.25, 67.85], [-153.5, 67.75], [-153.75, 67.85], [-154.0, 67.75], [-154.25, 67.85], [-154.32, 67.82], [-154.47, 67.47], [-155.0, 67.25], [-155.25, 67.35], [-155.5, 67.25], [-156.03, 67.47], [-156.18, 67.82], [-156.25, 67.85], [-156.5, 67.75], [-157.03, 67.97], [-157.18, 68.32], [-157.25, 68.35], [-157.5, 68.25], [-158.03, 68.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 20.636223011228168}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 15.753284463068683}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.228965494521105, -8.462336687118636, -10.112932191194034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-7.249728866672569, -4.891036541246706, -6.080919538014143]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [13.75699240561315, 17.52862994593349, 15.974231037659427]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [17.182069564872535, 20.636223011228168, 19.87002230246324]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.57188528050501, 1.9897248654991264, 1.7972030930794685]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8776260537688487, 2.2004573390593136, 2.2950086299225587]}}