{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:38.961956", "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": "2011-Jun-02_to_2011-Jun-07_288.0_12.0"}, "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": 2011060000200}, "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 02 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 07 2011"}, "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": 54572.969933562235}, "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": ["Colombia", "Venezuela"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "N.W.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": ["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": 12.0}, "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": 288.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "288.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 287.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.03, 12.53], [-72.5, 12.75], [-72.25, 12.65], [-72.0, 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[-70.75, 9.85], [-71.0, 9.75], [-71.53, 9.97], [-71.68, 10.32], [-72.03, 10.47], [-72.18, 10.82], [-72.25, 10.85], [-72.5, 10.75], [-73.03, 10.97], [-73.25, 11.5], [-73.15, 11.75], [-73.25, 12.0], [-73.03, 12.53]]]]}, "2011-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.03, 12.53], [-72.5, 12.75], [-72.25, 12.65], [-72.0, 12.75], [-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.82, 12.18], [-70.75, 12.15], [-70.5, 12.25], [-70.25, 12.15], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.75, 11.5], [-68.97, 10.97], [-69.32, 10.82], [-69.35, 10.75], [-69.25, 10.5], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-70.75, 9.85], [-71.0, 9.75], [-71.53, 9.97], [-71.68, 10.32], [-72.03, 10.47], [-72.18, 10.82], [-72.25, 10.85], [-72.5, 10.75], [-73.03, 10.97], [-73.25, 11.5], [-73.15, 11.75], [-73.25, 12.0], [-73.03, 12.53]]]]}, "2011-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.03, 12.53], [-72.5, 12.75], [-72.25, 12.65], [-72.0, 12.75], [-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.82, 12.18], [-70.75, 12.15], [-70.5, 12.25], [-70.25, 12.15], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.75, 11.5], [-68.97, 10.97], [-69.32, 10.82], [-69.35, 10.75], [-69.25, 10.5], [-69.35, 10.25], [-69.25, 10.0], [-69.47, 9.47], [-70.0, 9.25], [-70.53, 9.47], [-70.68, 9.82], [-70.75, 9.85], [-71.0, 9.75], [-71.53, 9.97], [-71.68, 10.32], [-72.03, 10.47], [-72.18, 10.82], [-72.25, 10.85], [-72.5, 10.75], [-73.03, 10.97], [-73.25, 11.5], [-73.15, 11.75], [-73.25, 12.0], [-73.03, 12.53]]]]}, "2011-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.0, 12.75], [-71.75, 12.65], [-71.5, 12.75], [-70.97, 12.53], [-70.8, 12.12], [-70.5, 12.25], [-70.25, 12.15], [-70.0, 12.25], [-69.75, 12.15], [-69.5, 12.25], [-68.97, 12.03], [-68.75, 11.5], [-68.97, 10.97], [-69.32, 10.82], [-69.35, 10.75], [-69.25, 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recorded over entire duration", "value": -4.115104058984684}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.029025320019756}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.899564588431815, 26.195038856453323, 26.340675237449375, 25.983467730490304, 26.535970625557752, 27.24085575075179]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.726959498506687, 24.12138686296413, 24.090603250670426, 23.709322761394162, 24.30544216166544, 25.09474690837868]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6662240372949424, -2.1190061203555377, -1.9941234348308052, -2.3794333468888578, -1.9861009920487704, -1.844410793962355]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.733714921782166, -3.573210144823122, -3.38261762939635, -4.115104058984684, -3.2494822586377836, -2.793403213159877]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.733142125714679, -2.170127833860027, -2.0131386612551156, -2.398977506615897, -1.8207414542681057, -1.631461512476136]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4942280984467016, -3.032114277113259, -3.0122332872310715, -3.163331866921723, -2.4229837625352406, -2.0046506655326706]}}