{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:27.364958", "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": "2014-Jan-06_to_2014-Jan-10_321.0_-16.0"}, "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": 2014010000324}, "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 06 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 10 2014"}, "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": 62196.46660013503}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["South 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": -16.0}, "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": 321.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "321.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 319.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 321.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.53, -14.47], [-40.0, -14.25], [-39.5, -14.46], [-39.0, -14.25], [-38.47, -14.47], [-38.25, -15.0], [-38.35, -15.25], [-38.25, -15.5], [-38.47, -16.03], [-38.82, -16.18], [-38.85, -16.25], [-38.75, -16.5], [-38.97, -17.03], [-39.5, -17.25], [-40.03, -17.03], [-40.25, -16.5], [-40.15, -16.25], [-40.18, -16.18], [-40.53, -16.03], [-40.75, -15.5], [-40.65, -15.25], [-40.75, -15.0], [-40.53, -14.47]]]]}, "2014-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -16.47], [-40.5, -16.25], [-40.25, -16.35], [-40.18, -16.32], [-40.15, -16.25], [-40.18, -16.18], [-40.53, -16.03], [-40.75, -15.5], [-40.65, -15.25], [-40.75, -15.0], [-40.53, -14.47], [-40.0, -14.25], [-39.5, -14.46], [-39.0, -14.25], [-38.47, -14.47], [-38.25, -15.0], [-38.35, -15.25], [-38.25, -15.5], [-38.35, -15.75], [-38.25, -16.0], [-38.47, -16.53], [-38.82, -16.68], [-38.85, -16.75], [-38.75, -17.0], [-38.85, -17.25], [-38.82, -17.32], [-38.47, -17.47], [-38.25, -18.0], [-38.35, -18.25], [-38.25, -18.5], [-38.47, -19.03], [-39.0, -19.25], [-39.5, -19.04], [-40.0, -19.25], [-40.53, -19.03], [-40.75, -18.5], [-40.65, -18.25], [-40.68, -18.18], [-41.03, -18.03], [-41.25, -17.5], [-41.15, -17.25], [-41.25, -17.0], [-41.03, -16.47]]]]}, "2014-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -16.47], [-40.5, -16.25], [-40.25, -16.35], [-40.18, -16.32], [-40.15, -16.25], [-40.18, -16.18], [-40.53, -16.03], [-40.75, -15.5], [-40.65, -15.25], [-40.75, -15.0], [-40.53, -14.47], [-40.0, -14.25], [-39.5, -14.46], [-39.0, -14.25], [-38.75, -14.35], [-38.5, -14.25], [-37.97, -14.47], [-37.75, -15.0], [-37.85, -15.25], [-37.75, -15.5], [-37.97, -16.03], [-38.32, -16.18], [-38.35, -16.25], [-38.25, -16.5], [-38.47, -17.03], [-38.82, -17.18], [-38.85, -17.25], [-38.82, -17.32], [-38.47, -17.47], [-38.25, -18.0], [-38.35, -18.25], [-38.25, -18.5], [-38.47, -19.03], [-39.0, -19.25], [-39.5, -19.04], [-40.0, -19.25], [-40.53, -19.03], [-40.75, -18.5], [-40.65, -18.25], [-40.68, -18.18], [-41.03, -18.03], [-41.25, -17.5], [-41.15, -17.25], [-41.25, -17.0], [-41.03, -16.47]]]]}, "2014-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -16.47], [-40.5, -16.25], [-40.25, -16.35], [-40.0, -16.25], [-40.53, -16.03], [-40.75, -15.5], [-40.53, -14.97], [-40.0, -14.75], [-39.47, -14.97], [-39.3, -15.38], [-39.18, -15.32], [-39.15, -15.25], [-39.25, -15.0], [-39.03, -14.47], [-38.5, -14.25], [-37.97, -14.47], [-37.75, -15.0], [-37.85, -15.25], [-37.75, -15.5], [-37.97, -16.03], [-38.32, -16.18], [-38.35, -16.25], [-38.25, -16.5], [-38.47, -17.03], [-38.82, -17.18], [-38.85, -17.25], [-38.82, -17.32], [-38.47, -17.47], [-38.25, -18.0], [-38.35, -18.25], [-38.25, -18.5], [-38.47, -19.03], [-39.0, -19.25], [-39.5, -19.04], [-40.0, -19.25], [-40.53, -19.03], [-40.75, -18.5], [-40.65, -18.25], [-40.68, -18.18], [-41.03, -18.03], [-41.25, -17.5], [-41.15, -17.25], [-41.25, -17.0], [-41.03, -16.47]], [[-39.75, -16.35], [-39.68, -16.32], [-39.65, -16.25], [-39.7, -16.12], [-40.0, -16.25], [-39.75, -16.35]]]]}, "2014-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.03, -17.53], [-41.25, -17.0], [-41.03, -16.47], [-40.5, -16.25], [-40.0, -16.46], [-39.68, -16.32], [-39.65, -16.25], [-39.75, -16.0], [-39.53, -15.47], [-39.18, -15.32], [-39.15, -15.25], [-39.25, -15.0], [-39.03, -14.47], [-38.5, -14.25], [-37.97, -14.47], [-37.75, -15.0], [-37.85, -15.25], [-37.75, -15.5], [-37.97, -16.03], [-38.32, -16.18], [-38.35, -16.25], [-38.25, -16.5], [-38.47, -17.03], [-38.82, -17.18], [-38.85, -17.25], [-38.75, -17.5], [-38.97, -18.03], [-39.5, -18.25], [-40.03, -18.03], [-40.2, -17.62], [-40.5, -17.75], [-41.03, -17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.8240311324673257}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.492616149241484}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.50840500343179, 24.453569049474766, 24.455648545678116, 24.538383731449358, 24.82179535383267]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.816127668403453, 23.42684597912222, 23.23486378009511, 22.926600817662745, 23.850200310869354]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.294725582526894, -1.5100551761497216, -1.5419739342704777, -1.573658897489156, -1.3239271168600422]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6805141763541656, -2.2755271953403167, -2.20812081363664, -2.8240311324673257, -1.8709647672524738]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.50223819128872, -1.6139711367574188, -1.6995635671013691, -1.6369630154828692, -1.636709761562535]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7906386367536222, -1.990952122463408, -2.152907870343854, -2.000041230293301, -2.018988682695387]}}