{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:23.256400", "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": "2012-Jan-22_to_2012-Jan-26_297.0_18.0"}, "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": 2012010001140}, "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 22 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 58843.7926029189}, "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": ["Saint Eustatius"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "N.Atlantic-Ocean"]}, "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": ["Caribbean Sea", "North Atlantic Ocean"]}, "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": 18.0}, "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": 297.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.03, 17.47], [-64.25, 18.0], [-64.03, 18.53], [-63.5, 18.75], [-63.25, 18.65], [-63.0, 18.75], [-62.47, 18.53], [-62.25, 18.0], [-62.47, 17.47], [-63.0, 17.25], [-63.25, 17.35], [-63.5, 17.25], [-64.03, 17.47]]]]}, "2012-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, 18.0], [-65.53, 18.53], [-65.18, 18.68], [-65.03, 19.03], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.75, 19.15], [-63.5, 19.25], [-63.25, 19.15], [-63.0, 19.25], [-62.47, 19.03], [-62.32, 18.68], [-62.25, 18.65], [-62.0, 18.75], [-61.47, 18.53], [-61.25, 18.0], [-61.47, 17.47], [-62.0, 17.25], [-62.25, 17.35], [-62.5, 17.25], [-62.75, 17.35], [-63.0, 17.25], [-63.25, 17.35], [-63.32, 17.32], [-63.47, 16.97], [-64.0, 16.75], [-64.25, 16.85], [-64.5, 16.75], [-65.03, 16.97], [-65.18, 17.32], [-65.53, 17.47], [-65.75, 18.0]]]]}, "2012-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, 18.0], [-65.53, 18.53], [-65.18, 18.68], [-65.03, 19.03], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.75, 19.15], [-63.5, 19.25], [-63.25, 19.15], [-63.0, 19.25], [-62.47, 19.03], [-62.32, 18.68], [-62.25, 18.65], [-62.0, 18.75], [-61.75, 18.65], [-61.5, 18.75], [-60.97, 18.53], [-60.75, 18.0], [-60.97, 17.47], [-61.32, 17.32], [-61.47, 16.97], [-62.0, 16.75], [-62.25, 16.85], [-62.5, 16.75], [-62.75, 16.85], [-62.82, 16.82], [-62.97, 16.47], [-63.5, 16.25], [-63.75, 16.35], [-64.0, 16.25], [-64.53, 16.47], [-64.68, 16.82], [-65.03, 16.97], [-65.18, 17.32], [-65.53, 17.47], [-65.75, 18.0]]]]}, "2012-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, 18.0], [-65.53, 18.53], [-65.18, 18.68], [-65.03, 19.03], [-64.5, 19.25], [-64.25, 19.15], [-64.0, 19.25], [-63.75, 19.15], [-63.5, 19.25], [-63.25, 19.15], [-63.0, 19.25], [-62.47, 19.03], [-62.32, 18.68], [-62.25, 18.65], [-62.0, 18.75], [-61.75, 18.65], [-61.5, 18.75], [-60.97, 18.53], [-60.75, 18.0], [-60.97, 17.47], [-61.32, 17.32], [-61.47, 16.97], [-62.0, 16.75], [-62.25, 16.85], [-62.5, 16.75], [-62.75, 16.85], [-62.82, 16.82], [-62.97, 16.47], [-63.5, 16.25], [-63.75, 16.35], [-64.0, 16.25], [-64.53, 16.47], [-64.68, 16.82], [-65.03, 16.97], [-65.18, 17.32], [-65.53, 17.47], [-65.75, 18.0]]]]}, "2012-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.75, 18.0], [-65.53, 18.53], [-65.0, 18.75], [-64.75, 18.65], [-64.5, 18.75], [-64.25, 18.65], [-64.0, 18.75], [-63.75, 18.65], [-63.68, 18.68], [-63.53, 19.03], [-63.0, 19.25], [-62.47, 19.03], [-62.32, 18.68], [-62.25, 18.65], [-62.0, 18.75], [-61.75, 18.65], [-61.5, 18.75], [-60.97, 18.53], [-60.75, 18.0], [-60.97, 17.47], [-61.32, 17.32], [-61.47, 16.97], [-62.0, 16.75], [-62.25, 16.85], [-62.5, 16.75], [-62.75, 16.85], [-62.82, 16.82], [-62.97, 16.47], [-63.5, 16.25], [-63.75, 16.35], [-64.0, 16.25], [-64.53, 16.47], [-64.68, 16.82], [-65.03, 16.97], [-65.18, 17.32], [-65.53, 17.47], [-65.75, 18.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8495577711033206}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.123669153374348}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.168173424792656, 23.66462436530361, 23.691211250313586, 23.95167013073626, 24.052472305722745]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.102947714160962, 23.170226728249474, 23.31282869130922, 23.379856954844684, 23.88377063329716]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.779632152166073, -1.3097371480223194, -1.3131422356019642, -1.0260746064658322, -0.9137644101749897]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.8052430119433893, -1.6660450897019246, -1.8495577711033206, -1.480406499022365, -1.271316867667963]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.58862798043117, -2.6111634589907617, -2.727538924485138, -2.098484133552717, -1.895463752476267]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6467272583262966, -3.181569947870116, -3.785019783635129, -3.0185241128478486, -2.740317916487038]}}