{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:38.461378", "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-Jun-08_to_2012-Jun-10_294.0_0.5"}, "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": 2012060000421}, "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": "June 08 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 10 2012"}, "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": "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": 123627.93287218935}, "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", "Colombia", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": []}, "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": 0.5}, "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": 294.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "294.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 296.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, 2.03], [-69.5, 2.25], [-69.25, 2.15], [-69.0, 2.25], [-68.75, 2.15], [-68.68, 2.18], [-68.53, 2.53], [-68.0, 2.75], [-67.47, 2.53], [-67.25, 2.0], [-67.35, 1.75], [-67.25, 1.5], [-67.37, 1.2], [-67.2, 1.12], [-67.03, 1.53], [-66.5, 1.75], [-66.25, 1.65], [-66.0, 1.75], [-65.47, 1.53], [-65.32, 1.18], [-65.0, 1.04], [-64.5, 1.25], [-64.25, 1.15], [-64.0, 1.25], [-63.47, 1.03], [-63.32, 0.68], [-62.97, 0.53], [-62.75, 0.0], [-62.97, -0.53], [-63.5, -0.75], [-64.0, -0.54], [-64.32, -0.68], [-64.47, -1.03], [-64.82, -1.18], [-64.85, -1.25], [-64.75, -1.5], [-64.85, -1.75], [-64.75, -2.0], [-64.97, -2.53], [-65.5, -2.75], [-66.03, -2.53], [-66.18, -2.18], [-66.53, -2.03], [-66.75, -1.5], [-66.65, -1.25], [-66.68, -1.18], [-67.0, -1.04], [-67.5, -1.25], [-67.75, -1.15], [-68.0, -1.25], [-68.25, -1.15], [-68.5, -1.25], [-69.03, -1.03], [-69.25, -0.5], [-69.15, -0.25], [-69.25, 0.0], [-69.15, 0.25], [-69.18, 0.32], [-69.25, 0.35], [-69.5, 0.25], [-70.03, 0.47], [-70.25, 1.0], [-70.15, 1.25], [-70.25, 1.5], [-70.03, 2.03]]]]}, "2012-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, 2.03], [-69.5, 2.25], [-69.25, 2.15], [-69.0, 2.25], [-68.75, 2.15], [-68.68, 2.18], [-68.53, 2.53], [-68.0, 2.75], [-67.47, 2.53], [-67.25, 2.0], [-67.35, 1.75], [-67.25, 1.5], [-67.37, 1.2], [-67.2, 1.12], [-67.03, 1.53], [-66.5, 1.75], [-66.25, 1.65], [-66.0, 1.75], [-65.47, 1.53], [-65.32, 1.18], [-65.0, 1.04], [-64.5, 1.25], [-64.25, 1.15], [-64.0, 1.25], [-63.47, 1.03], [-63.32, 0.68], [-62.97, 0.53], [-62.75, 0.0], [-62.97, -0.53], [-63.5, -0.75], [-64.0, -0.54], [-64.32, -0.68], [-64.47, -1.03], [-64.82, -1.18], [-64.85, -1.25], [-64.75, -1.5], [-64.85, -1.75], [-64.75, -2.0], [-64.97, -2.53], [-65.5, -2.75], [-66.03, -2.53], [-66.18, -2.18], [-66.53, -2.03], [-66.75, -1.5], [-66.65, -1.25], [-66.68, -1.18], [-67.0, -1.04], [-67.5, -1.25], [-67.75, -1.15], [-68.0, -1.25], [-68.25, -1.15], [-68.5, -1.25], [-69.03, -1.03], [-69.25, -0.5], [-69.15, -0.25], [-69.25, 0.0], [-69.15, 0.25], [-69.18, 0.32], [-69.25, 0.35], [-69.5, 0.25], [-70.03, 0.47], [-70.25, 1.0], [-70.15, 1.25], [-70.25, 1.5], [-70.03, 2.03]]]]}, "2012-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, 2.03], [-69.5, 2.25], [-69.25, 2.15], [-69.0, 2.25], [-68.75, 2.15], [-68.68, 2.18], [-68.53, 2.53], [-68.0, 2.75], [-67.47, 2.53], [-67.25, 2.0], [-67.35, 1.75], [-67.25, 1.5], [-67.37, 1.2], [-67.2, 1.12], [-67.03, 1.53], [-66.5, 1.75], [-66.25, 1.65], [-66.0, 1.75], [-65.47, 1.53], [-65.32, 1.18], [-65.0, 1.04], [-64.5, 1.25], [-64.25, 1.15], [-64.0, 1.25], [-63.47, 1.03], [-63.32, 0.68], [-62.97, 0.53], [-62.75, 0.0], [-62.97, -0.53], [-63.5, -0.75], [-64.0, -0.54], [-64.32, -0.68], [-64.47, -1.03], [-64.82, -1.18], [-64.85, -1.25], [-64.75, -1.5], [-64.85, -1.75], [-64.75, -2.0], [-64.97, -2.53], [-65.5, -2.75], [-66.03, -2.53], [-66.18, -2.18], [-66.53, -2.03], [-66.75, -1.5], [-66.65, -1.25], [-66.68, -1.18], [-67.0, -1.04], [-67.5, -1.25], [-67.75, -1.15], [-68.0, -1.25], [-68.25, -1.15], [-68.5, -1.25], [-69.03, -1.03], [-69.25, -0.5], [-69.15, -0.25], [-69.25, 0.0], [-69.15, 0.25], [-69.18, 0.32], [-69.25, 0.35], [-69.5, 0.25], [-70.03, 0.47], [-70.25, 1.0], [-70.15, 1.25], [-70.25, 1.5], [-70.03, 2.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3549211067521583}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.3064105287299497}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.7045725591384, 22.998168233716342, 23.675396311127315]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.61250399514546, 20.914498892635663, 21.664638534200662]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0812990423837463, -1.7595109491883476, -1.0784215946177553]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.562703352958522, -2.3549211067521583, -1.508261841261458]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5194107448561571, -2.487222259961833, -1.5360962450105735]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0469578223527387, -3.304257198993007, -2.1755185112873408]}}