{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:20.858859", "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-Feb-03_to_2022-Feb-08_294.5_17.5"}, "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": 2022020000239}, "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": "February 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 08 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 268782.5648451747}, "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": ["Bonaire, Sint Eustatius and Saba", "Dominican Republic", "Puerto Rico", "Sint Maarten (Dutch part)"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "America", "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": ["Atlantic Ocean", "Caribbean Sea"]}, "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": 17.5}, "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": 294.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 289.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-71.0, 18.25], [-70.7, 18.12], [-70.53, 18.53], [-70.0, 18.75], [-69.47, 18.53], [-69.32, 18.18], [-69.2, 18.13], [-69.15, 18.25], [-69.25, 18.5], [-69.03, 19.03], [-68.5, 19.25], [-68.25, 19.15], [-68.18, 19.18], [-68.03, 19.53], [-67.5, 19.75], [-67.25, 19.65], [-67.0, 19.75], [-66.75, 19.65], [-66.5, 19.75], [-65.97, 19.53], [-65.8, 19.12], [-65.5, 19.25], [-65.25, 19.15], [-65.0, 19.25], [-64.75, 19.15], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.47, 19.03], [-63.32, 18.68], [-63.25, 18.65], [-63.0, 18.75], [-62.75, 18.65], [-62.5, 18.75], [-61.97, 18.53], [-61.82, 18.18], [-61.75, 18.15], [-61.5, 18.25], [-60.97, 18.03], [-60.75, 17.5], [-60.85, 17.25], [-60.75, 17.0], [-60.97, 16.47], [-61.5, 16.25], [-61.75, 16.35], [-61.82, 16.32], [-61.97, 15.97], [-62.5, 15.75], [-62.75, 15.85], [-63.0, 15.75], [-63.25, 15.85], [-63.32, 15.82], [-63.47, 15.47], [-63.82, 15.32], [-63.97, 14.97], [-64.5, 14.75], [-64.75, 14.85], [-65.0, 14.75], [-65.25, 14.85], [-65.5, 14.75], [-65.75, 14.85], [-66.0, 14.75], [-66.25, 14.85], [-66.5, 14.75], [-66.75, 14.85], [-67.0, 14.75], [-67.53, 14.97], [-67.68, 15.32], [-67.75, 15.35], [-68.0, 15.25], [-68.53, 15.47], [-68.68, 15.82], [-68.75, 15.85], [-69.0, 15.75], [-69.25, 15.85], [-69.32, 15.82], [-69.47, 15.47], [-70.0, 15.25], [-70.53, 15.47], [-70.75, 16.0], [-70.65, 16.25], [-70.68, 16.32], [-71.03, 16.47], [-71.18, 16.82], [-71.53, 16.97], [-71.75, 17.5], [-71.53, 18.03], [-71.0, 18.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "N.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.02999999999997, 19.53], [-66.5, 19.75], [-65.97000000000003, 19.53], [-65.75, 19.0], [-65.97000000000003, 18.47], [-66.5, 18.25], [-67.02999999999997, 18.47], [-67.25, 19.0], [-67.02999999999997, 19.53]]]]}, "2022-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.02999999999997, 17.03], [-69.5, 17.25], [-69.25, 17.15], [-69.18, 17.18], [-69.04000000000002, 17.5], [-69.25, 18.0], [-69.02999999999997, 18.53], [-68.5, 18.75], [-68.07, 18.57], [-68.25, 19.0], [-68.02999999999997, 19.53], [-67.5, 19.75], [-67.25, 19.65], [-67.0, 19.75], [-66.75, 19.65], [-66.5, 19.75], [-65.97000000000003, 19.53], [-65.80000000000001, 19.12], [-65.5, 19.25], [-65.25, 19.15], [-65.0, 19.25], [-64.75, 19.15], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.47000000000003, 19.03], [-63.31999999999999, 18.68], [-63.25, 18.65], [-63.0, 18.75], [-62.75, 18.65], [-62.5, 18.75], [-61.97000000000003, 18.53], [-61.81999999999999, 18.18], [-61.75, 18.15], [-61.5, 18.25], [-60.97000000000003, 18.03], [-60.75, 17.5], [-60.85000000000002, 17.25], [-60.75, 17.0], [-60.97000000000003, 16.47], [-61.5, 16.25], [-61.75, 16.35], [-61.81999999999999, 16.32], [-61.97000000000003, 15.97], [-62.5, 15.75], [-62.75, 15.85], [-63.0, 15.75], [-63.25, 15.85], [-63.31999999999999, 15.82], [-63.47000000000003, 15.47], [-63.81999999999999, 15.32], [-63.97000000000003, 14.97], [-64.5, 14.75], [-64.75, 14.85], [-65.0, 14.75], [-65.25, 14.85], [-65.5, 14.75], [-65.75, 14.85], [-66.0, 14.75], [-66.25, 14.85], [-66.5, 14.75], [-66.75, 14.85], [-67.0, 14.75], [-67.52999999999997, 14.97], [-67.68, 15.32], [-67.75, 15.35], [-68.0, 15.25], [-68.52999999999997, 15.47], [-68.68, 15.82], [-68.75, 15.85], [-69.0, 15.75], [-69.25, 15.85], [-69.32, 15.82], [-69.47000000000003, 15.47], [-70.0, 15.25], [-70.52999999999997, 15.47], [-70.75, 16.0], [-70.52999999999997, 16.53], [-70.18, 16.68], [-70.02999999999997, 17.03]], [[-67.80000000000001, 18.12], [-67.62, 18.2], [-67.68, 18.32], [-67.93, 18.43], [-67.80000000000001, 18.12]]]]}, "2022-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.02999999999997, 17.03], [-69.68, 17.18], [-69.52999999999997, 17.53], [-69.12, 17.7], [-69.25, 18.0], [-69.14999999999998, 18.25], [-69.25, 18.5], [-69.02999999999997, 19.03], [-68.5, 19.25], [-68.25, 19.15], [-68.18, 19.18], [-68.02999999999997, 19.53], [-67.5, 19.75], [-67.25, 19.65], [-67.0, 19.75], [-66.75, 19.65], [-66.5, 19.75], [-65.97000000000003, 19.53], [-65.80000000000001, 19.12], [-65.5, 19.25], [-65.25, 19.15], [-65.0, 19.25], [-64.75, 19.15], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.47000000000003, 19.03], [-63.31999999999999, 18.68], [-63.25, 18.65], [-63.0, 18.75], [-62.75, 18.65], [-62.5, 18.75], [-61.97000000000003, 18.53], [-61.81999999999999, 18.18], [-61.75, 18.15], [-61.5, 18.25], [-60.97000000000003, 18.03], [-60.75, 17.5], [-60.85000000000002, 17.25], [-60.75, 17.0], [-60.97000000000003, 16.47], [-61.5, 16.25], [-61.75, 16.35], [-61.81999999999999, 16.32], [-61.97000000000003, 15.97], [-62.5, 15.75], [-62.75, 15.85], [-63.0, 15.75], [-63.25, 15.85], [-63.31999999999999, 15.82], [-63.47000000000003, 15.47], [-63.81999999999999, 15.32], [-63.97000000000003, 14.97], [-64.5, 14.75], [-64.75, 14.85], [-65.0, 14.75], [-65.25, 14.85], [-65.5, 14.75], [-65.75, 14.85], [-66.0, 14.75], [-66.25, 14.85], [-66.5, 14.75], [-66.75, 14.85], [-67.0, 14.75], [-67.52999999999997, 14.97], [-67.68, 15.32], [-67.75, 15.35], [-68.0, 15.25], [-68.52999999999997, 15.47], [-68.68, 15.82], [-68.75, 15.85], [-69.0, 15.75], [-69.25, 15.85], [-69.32, 15.82], [-69.47000000000003, 15.47], [-70.0, 15.25], [-70.52999999999997, 15.47], [-70.75, 16.0], [-70.52999999999997, 16.53], [-70.18, 16.68], [-70.02999999999997, 17.03]]]]}, "2022-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.52999999999997, 16.97], [-71.75, 17.5], [-71.52999999999997, 18.03], [-71.0, 18.25], [-70.69999999999999, 18.12], [-70.52999999999997, 18.53], [-70.0, 18.75], [-69.47000000000003, 18.53], [-69.32, 18.18], [-69.19999999999999, 18.12], [-69.14999999999998, 18.25], [-69.25, 18.5], [-69.02999999999997, 19.03], [-68.5, 19.25], [-68.25, 19.15], [-68.18, 19.18], [-68.02999999999997, 19.53], [-67.5, 19.75], [-67.25, 19.65], [-67.0, 19.75], [-66.75, 19.65], [-66.5, 19.75], [-65.97000000000003, 19.53], [-65.80000000000001, 19.12], [-65.5, 19.25], [-65.25, 19.15], [-65.0, 19.25], [-64.75, 19.15], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.47000000000003, 19.03], [-63.31999999999999, 18.68], [-63.25, 18.65], [-63.0, 18.75], [-62.75, 18.65], [-62.5, 18.75], [-61.97000000000003, 18.53], [-61.81999999999999, 18.18], [-61.75, 18.15], [-61.5, 18.25], [-60.97000000000003, 18.03], [-60.75, 17.5], [-60.85000000000002, 17.25], [-60.75, 17.0], [-60.97000000000003, 16.47], [-61.5, 16.25], [-61.75, 16.35], [-61.81999999999999, 16.32], [-61.97000000000003, 15.97], [-62.5, 15.75], [-62.75, 15.85], [-63.0, 15.75], [-63.25, 15.85], [-63.31999999999999, 15.82], [-63.47000000000003, 15.47], [-63.81999999999999, 15.32], [-63.97000000000003, 14.97], [-64.5, 14.75], [-64.75, 14.85], [-65.0, 14.75], [-65.25, 14.85], [-65.5, 14.75], [-65.75, 14.85], [-66.0, 14.75], [-66.25, 14.85], [-66.5, 14.75], [-66.75, 14.85], [-67.0, 14.75], [-67.52999999999997, 14.97], [-67.68, 15.32], [-67.75, 15.35], [-68.0, 15.25], [-68.52999999999997, 15.47], [-68.68, 15.82], [-68.75, 15.85], [-69.0, 15.75], [-69.25, 15.85], [-69.32, 15.82], [-69.47000000000003, 15.47], [-70.0, 15.25], [-70.52999999999997, 15.47], [-70.75, 16.0], [-70.64999999999998, 16.25], [-70.68, 16.32], [-71.02999999999997, 16.47], [-71.18, 16.82], [-71.52999999999997, 16.97]]]]}, "2022-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.52999999999997, 16.97], [-71.75, 17.5], [-71.52999999999997, 18.03], [-71.0, 18.25], [-70.69999999999999, 18.12], [-70.52999999999997, 18.53], [-70.0, 18.75], [-69.47000000000003, 18.53], [-69.32, 18.18], [-69.19999999999999, 18.12], [-69.14999999999998, 18.25], [-69.25, 18.5], [-69.02999999999997, 19.03], [-68.5, 19.25], [-68.25, 19.15], [-68.0, 19.25], [-67.47000000000003, 19.03], [-67.30000000000001, 18.62], [-67.0, 18.75], [-66.75, 18.65], [-66.5, 18.75], [-65.97000000000003, 18.53], [-65.82, 18.18], [-65.75, 18.15], [-65.5, 18.25], [-64.97000000000003, 18.03], [-64.82, 17.68], [-64.75, 17.65], [-64.5, 17.75], [-63.97000000000003, 17.53], [-63.75, 17.0], [-63.85000000000002, 16.75], [-63.75, 16.5], [-63.97000000000003, 15.97], [-64.5, 15.75], [-64.75, 15.85], [-65.0, 15.75], [-65.25, 15.85], [-65.5, 15.75], [-65.75, 15.85], [-66.0, 15.75], [-66.25, 15.85], [-66.5, 15.75], [-66.75, 15.85], [-67.0, 15.75], [-67.25, 15.85], [-67.5, 15.75], [-67.75, 15.85], [-68.0, 15.75], [-68.25, 15.85], [-68.5, 15.75], [-68.75, 15.85], [-69.0, 15.75], [-69.25, 15.85], [-69.5, 15.75], [-69.75, 15.85], [-70.0, 15.75], [-70.52999999999997, 15.97], [-70.68, 16.32], [-71.02999999999997, 16.47], [-71.18, 16.82], [-71.52999999999997, 16.97]]]]}, "2022-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.52999999999997, 16.97], [-71.75, 17.5], [-71.52999999999997, 18.03], [-71.0, 18.25], [-70.69999999999999, 18.12], [-70.52999999999997, 18.53], [-70.0, 18.75], [-69.47000000000003, 18.53], [-69.32, 18.18], [-68.97000000000003, 18.03], [-68.75, 17.5], [-68.85000000000002, 17.25], [-68.75, 17.0], [-68.85000000000002, 16.75], [-68.75, 16.5], [-68.97000000000003, 15.97], [-69.5, 15.75], [-69.75, 15.85], [-70.0, 15.75], [-70.52999999999997, 15.97], [-70.68, 16.32], [-71.02999999999997, 16.47], [-71.18, 16.82], [-71.52999999999997, 16.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.1928871917383503}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2249990761646732}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.876507385720572, 23.95521969908401, 23.7150981559451, 23.98369824532307, 24.077573784534422, 24.5202861228816]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.876507385720572, 22.91784969366489, 21.780197140025223, 22.152928387298687, 22.512490539704515, 24.215890029573018]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7880905974545271, -1.1758803358948875, -1.4087170714135022, -1.173103642080095, -1.1635278821321615, -0.7933350595336542]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.7880905974545271, -1.7663541362921933, -2.1928871917383503, -1.8224167751242248, -1.6273833346210722, -0.9077334085167763]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2570313477365782, -2.03947812317494, -2.4233029196161717, -2.0129471681786866, -2.056725589825967, -1.4534786490604306]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2570313477365782, -2.85133180683722, -3.7408520482110594, -3.0683254405075258, -2.5828037204766114, -1.6687432669887794]}}