{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:53.584676", "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-Mar-04_to_2022-Mar-06_215.0_61.0"}, "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": 2022030001527}, "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": "March 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 06 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": 56757.86265820744}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 61.0}, "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": 215.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "215.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 208.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 216.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 60.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-152.75, 62.0], [-152.53, 62.53], [-152.0, 62.75], [-151.75, 62.65], [-151.5, 62.75], [-151.25, 62.65], [-151.18, 62.68], [-151.03, 63.03], [-150.5, 63.25], [-150.25, 63.15], [-150.0, 63.25], [-149.75, 63.15], [-149.5, 63.25], [-149.25, 63.15], [-149.0, 63.25], [-148.75, 63.15], [-148.5, 63.25], [-148.25, 63.15], [-148.18, 63.18], [-148.03, 63.53], [-147.5, 63.75], [-147.25, 63.65], [-147.0, 63.75], [-146.75, 63.65], [-146.5, 63.75], [-146.25, 63.65], [-146.0, 63.75], [-145.47, 63.53], [-145.32, 63.18], [-144.97, 63.03], [-144.82, 62.68], [-144.47, 62.53], [-144.32, 62.18], [-143.97, 62.03], [-143.82, 61.68], [-143.47, 61.53], [-143.25, 61.0], [-143.35, 60.75], [-143.25, 60.5], [-143.47, 59.97], [-144.0, 59.75], [-144.25, 59.85], [-144.5, 59.75], [-144.75, 59.85], [-145.0, 59.75], [-145.53, 59.97], [-145.68, 60.32], [-145.75, 60.35], [-146.0, 60.25], [-146.25, 60.35], [-146.5, 60.25], [-147.03, 60.47], [-147.25, 61.0], [-147.15, 61.25], [-147.18, 61.32], [-147.25, 61.35], [-147.5, 61.25], [-148.03, 61.47], [-148.18, 61.82], [-148.25, 61.85], [-148.5, 61.75], [-148.75, 61.85], [-149.0, 61.75], [-149.25, 61.85], [-149.5, 61.75], [-149.75, 61.85], [-149.82, 61.82], [-149.97, 61.47], [-150.5, 61.25], [-150.75, 61.35], [-151.0, 61.25], [-151.25, 61.35], [-151.5, 61.25], [-151.75, 61.35], [-152.0, 61.25], [-152.53, 61.47], [-152.75, 62.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-152.0, 61.25], [-152.53, 61.47], [-152.75, 62.0], [-152.53, 62.53], [-152.0, 62.75], [-151.75, 62.65], [-151.5, 62.75], [-151.25, 62.65], [-151.18, 62.68], [-151.03, 63.03], [-150.5, 63.25], [-150.25, 63.15], [-150.0, 63.25], [-149.75, 63.15], [-149.5, 63.25], [-149.25, 63.15], [-149.0, 63.25], [-148.75, 63.15], [-148.5, 63.25], [-148.25, 63.15], [-148.18, 63.18], [-148.03, 63.53], [-147.5, 63.75], [-147.25, 63.65], [-147.0, 63.75], [-146.75, 63.65], [-146.5, 63.75], [-146.25, 63.65], [-146.0, 63.75], [-145.47, 63.53], [-145.32, 63.18], [-144.97, 63.03], [-144.82, 62.68], [-144.47, 62.53], [-144.32, 62.18], [-143.97, 62.03], [-143.82, 61.68], [-143.47, 61.53], [-143.25, 61.0], [-143.35, 60.75], [-143.25, 60.5], [-143.47, 59.97], [-144.0, 59.75], [-144.25, 59.85], [-144.5, 59.75], [-144.75, 59.85], [-145.0, 59.75], [-145.53, 59.97], [-145.68, 60.32], [-145.75, 60.35], [-146.0, 60.25], [-146.25, 60.35], [-146.5, 60.25], [-147.03, 60.47], [-147.25, 61.0], [-147.15, 61.25], [-147.18, 61.32], [-147.25, 61.35], [-147.5, 61.25], [-148.03, 61.47], [-148.18, 61.82], [-148.25, 61.85], [-148.5, 61.75], [-148.75, 61.85], [-149.0, 61.75], [-149.25, 61.85], [-149.5, 61.75], [-149.75, 61.85], [-149.82, 61.82], [-149.97, 61.47], [-150.5, 61.25], [-150.75, 61.35], [-151.0, 61.25], [-151.25, 61.35], [-151.5, 61.25], [-151.75, 61.35], [-152.0, 61.25]]]]}, "2022-03-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-152.0, 61.25], [-152.53, 61.47], [-152.75, 62.0], [-152.53, 62.53], [-152.0, 62.75], [-151.75, 62.65], [-151.5, 62.75], [-151.25, 62.65], [-151.18, 62.68], [-151.03, 63.03], [-150.5, 63.25], [-150.25, 63.15], [-150.0, 63.25], [-149.75, 63.15], [-149.5, 63.25], [-149.25, 63.15], [-149.0, 63.25], [-148.75, 63.15], [-148.5, 63.25], [-148.25, 63.15], [-148.18, 63.18], [-148.03, 63.53], [-147.5, 63.75], [-147.25, 63.65], [-147.0, 63.75], [-146.75, 63.65], [-146.5, 63.75], [-146.25, 63.65], [-146.0, 63.75], [-145.47, 63.53], [-145.32, 63.18], [-144.97, 63.03], [-144.82, 62.68], [-144.47, 62.53], [-144.32, 62.18], [-143.97, 62.03], [-143.82, 61.68], [-143.47, 61.53], [-143.25, 61.0], [-143.35, 60.75], [-143.25, 60.5], [-143.47, 59.97], [-144.0, 59.75], [-144.25, 59.85], [-144.5, 59.75], [-144.75, 59.85], [-145.0, 59.75], [-145.53, 59.97], [-145.68, 60.32], [-145.75, 60.35], [-146.0, 60.25], [-146.25, 60.35], [-146.5, 60.25], [-147.03, 60.47], [-147.25, 61.0], [-147.15, 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63.18], [-144.97, 63.03], [-144.82, 62.68], [-144.47, 62.53], [-144.32, 62.18], [-143.97, 62.03], [-143.82, 61.68], [-143.47, 61.53], [-143.25, 61.0], [-143.35, 60.75], [-143.25, 60.5], [-143.47, 59.97], [-144.0, 59.75], [-144.25, 59.85], [-144.5, 59.75], [-144.75, 59.85], [-145.0, 59.75], [-145.53, 59.97], [-145.68, 60.32], [-145.75, 60.35], [-146.0, 60.25], [-146.25, 60.35], [-146.5, 60.25], [-147.03, 60.47], [-147.25, 61.0], [-147.15, 61.25], [-147.18, 61.32], [-147.25, 61.35], [-147.5, 61.25], [-148.03, 61.47], [-148.18, 61.82], [-148.25, 61.85], [-148.5, 61.75], [-148.75, 61.85], [-149.0, 61.75], [-149.25, 61.85], [-149.5, 61.75], [-149.75, 61.85], [-149.82, 61.82], [-149.97, 61.47], [-150.5, 61.25], [-150.75, 61.35], [-151.0, 61.25], [-151.25, 61.35], [-151.5, 61.25], [-151.75, 61.35], [-152.0, 61.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.994330915255546}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.735205384096309}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-4.672295694056686, -3.6708156137027004, -4.077858678739176]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.3966993564546897, 1.3006072477452335, 0.9112228588015796]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.22339656913661, 9.26634598536287, 8.715873597789448]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.937619404792827, 11.994330915255546, 11.226056483205866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4617973232674888, 1.6639144136457191, 1.5504194680354335]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8899159943580432, 2.0867037979890815, 1.9557407479070332]}}