{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:53.381573", "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": "2013-Nov-20_to_2013-Nov-24_295.5_-9.0"}, "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": 2013110000895}, "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": "November 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2013"}, "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": 85071.44548653564}, "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": ["Bolivia", "Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "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": -9.0}, "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": 295.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "295.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 297.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, -12.53], [-65.25, -12.0], [-65.03, -11.47], [-64.5, -11.25], [-64.25, -11.35], [-64.0, -11.25], [-63.75, -11.35], [-63.5, -11.25], [-62.97, -11.47], [-62.75, -12.0], [-62.97, -12.53], [-63.5, -12.75], [-63.75, -12.65], [-64.0, -12.75], [-64.25, -12.65], [-64.5, -12.75], [-65.03, -12.53]]]]}, "2013-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -9.97], [-65.68, -9.82], [-65.65, -9.75], [-65.75, -9.5], [-65.65, -9.25], [-65.75, -9.0], [-65.53, -8.47], [-65.0, -8.25], [-64.75, -8.35], [-64.5, -8.25], [-63.97, -8.47], [-63.82, -8.82], [-63.47, -8.97], [-63.25, -9.5], [-63.35, -9.75], [-63.25, -10.0], [-63.46, -10.5], [-63.32, -10.82], [-63.25, -10.85], [-63.0, -10.75], [-62.75, -10.85], [-62.5, -10.75], [-61.97, -10.97], [-61.75, -11.5], [-61.97, -12.03], [-62.5, -12.25], [-62.75, -12.15], [-62.82, -12.18], [-62.97, -12.53], [-63.5, -12.75], [-63.75, -12.65], [-64.0, -12.75], [-64.25, -12.65], [-64.5, -12.75], [-64.75, -12.65], [-65.0, -12.75], [-65.25, -12.65], [-65.5, -12.75], [-66.03, -12.53], [-66.25, -12.0], [-66.04, -11.5], [-66.25, -11.0], [-66.15, -10.75], [-66.25, -10.5], [-66.03, -9.97]]]]}, "2013-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -9.97], [-65.68, -9.82], [-65.65, -9.75], [-65.75, -9.5], [-65.65, -9.25], [-65.75, -9.0], [-65.53, -8.47], [-65.18, -8.32], [-65.03, -7.97], [-64.5, -7.75], [-63.97, -7.97], [-63.82, -8.32], [-63.47, -8.47], [-63.32, -8.82], [-62.97, -8.97], [-62.75, -9.5], [-62.96, -10.0], [-62.75, -10.5], [-62.87, -10.8], [-62.75, -10.85], [-62.5, -10.75], [-61.97, -10.97], [-61.75, -11.5], [-61.97, -12.03], [-62.5, -12.25], [-62.75, -12.15], [-62.82, -12.18], [-62.97, -12.53], [-63.5, -12.75], [-63.75, -12.65], [-64.0, -12.75], [-64.25, -12.65], [-64.5, -12.75], [-64.75, -12.65], [-65.0, -12.75], [-65.25, -12.65], [-65.5, -12.75], [-66.03, -12.53], [-66.25, -12.0], [-66.04, -11.5], [-66.25, -11.0], [-66.15, -10.75], [-66.25, -10.5], [-66.03, -9.97]]]]}, "2013-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -9.97], [-65.68, -9.82], [-65.65, -9.75], [-65.75, -9.5], [-65.65, -9.25], [-65.75, -9.0], [-65.53, -8.47], [-65.18, -8.32], [-65.03, -7.97], [-64.5, -7.75], [-63.97, -7.97], [-63.82, -8.32], [-63.47, -8.47], [-63.32, -8.82], [-62.97, -8.97], [-62.75, -9.5], [-62.96, -10.0], [-62.75, -10.5], [-62.87, -10.8], [-62.75, -10.85], [-62.5, -10.75], [-61.97, -10.97], [-61.75, -11.5], [-61.97, -12.03], [-62.5, -12.25], [-62.75, -12.15], [-62.82, -12.18], [-62.97, -12.53], [-63.5, -12.75], [-63.75, -12.65], [-64.0, -12.75], [-64.25, -12.65], [-64.5, -12.75], [-64.75, -12.65], [-65.0, -12.75], [-65.25, -12.65], [-65.5, -12.75], [-66.03, -12.53], [-66.25, -12.0], [-66.04, -11.5], [-66.25, -11.0], [-66.15, -10.75], [-66.25, -10.5], [-66.03, -9.97]]]]}, "2013-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.03, -7.97], [-64.5, -7.75], [-63.97, -7.97], [-63.82, -8.32], [-63.47, -8.47], [-63.32, -8.82], [-62.97, -8.97], [-62.75, -9.5], [-62.96, -10.0], [-62.75, -10.5], [-62.97, -11.03], [-63.5, -11.25], [-64.03, -11.03], [-64.18, -10.68], [-64.53, -10.53], [-64.75, -10.0], [-64.65, -9.75], [-64.68, -9.68], [-65.03, -9.53], [-65.25, -9.0], [-65.15, -8.75], [-65.25, -8.5], [-65.03, -7.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.282672729287583}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.646335341770563}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.28965511922786, 24.287698922009724, 24.007743739571822, 24.367884825475983, 24.64166784797044]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.222164931754435, 23.70400232153213, 23.329873378049854, 23.762638433902453, 24.06239314651856]}, "anom_evo_areamean": {"name": "Evolution 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