{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:03.076408", "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": "2015-Jan-02_to_2015-Jan-04_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": 2015010000248}, "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 02 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 04 2015"}, "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": 72910.07000395138}, "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", "Paraguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "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": -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": 295.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -18.5], [-64.15, -18.25], [-64.25, -18.0], [-64.15, -17.75], [-64.25, -17.5], [-64.03, -16.97], [-63.5, -16.75], [-63.25, -16.85], [-63.0, -16.75], [-62.47, -16.97], [-62.32, -17.32], [-61.97, -17.47], [-61.82, -17.82], [-61.47, -17.97], [-61.25, -18.5], [-61.35, -18.75], [-61.32, -18.82], [-60.97, -18.97], [-60.75, -19.5], [-60.85, -19.75], [-60.82, -19.82], [-60.47, -19.97], [-60.25, -20.5], [-60.35, -20.75], [-60.25, -21.0], [-60.35, -21.25], [-60.25, -21.5], [-60.47, -22.03], [-61.0, -22.25], [-61.25, -22.15], [-61.5, -22.25], [-62.03, -22.03], [-62.25, -21.5], [-62.15, -21.25], [-62.25, -21.0], [-62.15, -20.75], [-62.18, -20.68], [-62.53, -20.53], [-62.68, -20.18], [-63.03, -20.03], [-63.18, -19.68], [-63.25, -19.65], [-63.32, -19.68], [-63.47, -20.03], [-64.0, -20.25], [-64.53, -20.03], [-64.75, -19.5], [-64.53, -18.97], [-64.18, -18.82], [-64.15, -18.75], [-64.25, -18.5]]]]}, "2015-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -18.5], [-64.15, -18.25], [-64.25, -18.0], [-64.15, -17.75], [-64.25, -17.5], [-64.03, -16.97], [-63.5, -16.75], [-63.25, -16.85], [-63.0, -16.75], [-62.47, -16.97], [-62.32, -17.32], [-61.97, -17.47], [-61.82, -17.82], [-61.47, -17.97], [-61.25, -18.5], [-61.35, -18.75], [-61.32, -18.82], [-60.97, -18.97], [-60.75, -19.5], [-60.85, -19.75], [-60.82, -19.82], [-60.47, -19.97], [-60.25, -20.5], [-60.35, -20.75], [-60.25, -21.0], [-60.35, -21.25], [-60.25, -21.5], [-60.47, -22.03], [-61.0, -22.25], [-61.25, -22.15], [-61.5, -22.25], [-62.03, -22.03], [-62.25, -21.5], [-62.15, -21.25], [-62.25, -21.0], [-62.15, -20.75], [-62.18, -20.68], [-62.53, -20.53], [-62.68, -20.18], [-63.03, -20.03], [-63.18, -19.68], [-63.25, -19.65], [-63.32, -19.68], [-63.47, -20.03], [-64.0, -20.25], [-64.53, -20.03], [-64.75, -19.5], [-64.53, -18.97], [-64.18, -18.82], [-64.15, -18.75], [-64.25, -18.5]]]]}, "2015-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, -18.5], [-64.15, -18.25], [-64.25, -18.0], [-64.15, -17.75], [-64.25, -17.5], [-64.03, -16.97], [-63.5, -16.75], [-63.25, -16.85], [-63.0, -16.75], [-62.47, -16.97], [-62.32, -17.32], [-61.97, -17.47], [-61.82, -17.82], [-61.47, -17.97], [-61.25, -18.5], [-61.35, -18.75], [-61.32, -18.82], [-60.97, -18.97], [-60.75, -19.5], [-60.85, -19.75], [-60.82, -19.82], [-60.47, -19.97], [-60.25, -20.5], [-60.35, -20.75], [-60.25, -21.0], [-60.35, -21.25], [-60.25, -21.5], [-60.47, -22.03], [-61.0, -22.25], [-61.25, -22.15], [-61.5, -22.25], [-62.03, -22.03], [-62.25, -21.5], [-62.15, -21.25], [-62.25, -21.0], [-62.15, -20.75], [-62.18, -20.68], [-62.53, -20.53], [-62.68, -20.18], [-63.03, -20.03], [-63.18, -19.68], [-63.25, -19.65], [-63.32, -19.68], [-63.47, -20.03], [-64.0, -20.25], [-64.53, -20.03], [-64.75, -19.5], [-64.53, -18.97], [-64.18, -18.82], [-64.15, -18.75], [-64.25, -18.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.87867587339332}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.760867592801172}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.07378959541012, 19.17001160911576, 24.040434046761106]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.933008936133945, 17.440328446308797, 19.014353188026803]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.7015935241373223, -7.666420862885222, -2.9145883913809714]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.634684178363557, -9.87867587339332, -3.676539939341694]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9005786986298048, -3.938878586452824, -1.53605024056743]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.28021558895744, -4.554446087505073, -2.2012129804606584]}}