{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:48.553555", "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-Nov-11_to_2012-Nov-13_298.5_-22.5"}, "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": 2012110000532}, "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 11 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 13 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": 77224.78091857549}, "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": ["Argentina", "Bolivia", "Paraguay"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": []}, "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": -22.5}, "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": 298.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.25}, "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": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.15, -22.25], [-63.25, -22.0], [-63.03, -21.47], [-62.68, -21.32], [-62.65, -21.25], [-62.75, -21.0], [-62.65, -20.75], [-62.75, -20.5], [-62.65, -20.25], [-62.75, -20.0], [-62.53, -19.47], [-62.0, -19.25], [-61.75, -19.35], [-61.5, -19.25], [-60.97, -19.47], [-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], [-60.46, -22.0], [-60.25, -22.5], [-60.47, -23.03], [-60.82, -23.18], [-60.97, -23.53], [-61.32, -23.68], [-61.35, -23.75], [-61.32, -23.82], [-60.97, -23.97], [-60.75, -24.5], [-60.85, -24.75], [-60.75, -25.0], [-60.97, -25.53], [-61.5, -25.75], [-61.75, -25.65], [-62.0, -25.75], [-62.53, -25.53], [-62.75, -25.0], [-62.65, -24.75], [-62.75, -24.5], [-62.65, -24.25], [-62.75, -24.0], [-62.65, -23.75], [-62.68, -23.68], [-63.03, -23.53], [-63.25, -23.0], [-63.15, -22.75], [-63.25, -22.5], [-63.15, -22.25]]]]}, "2012-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.15, -22.25], [-63.25, -22.0], [-63.03, -21.47], [-62.68, -21.32], [-62.65, -21.25], [-62.75, -21.0], [-62.65, -20.75], [-62.75, -20.5], [-62.65, -20.25], [-62.75, -20.0], [-62.53, -19.47], [-62.0, -19.25], [-61.75, -19.35], [-61.5, -19.25], [-60.97, -19.47], [-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], [-60.46, -22.0], [-60.25, -22.5], [-60.47, -23.03], [-60.82, -23.18], [-60.97, -23.53], [-61.32, -23.68], [-61.35, -23.75], [-61.32, -23.82], [-60.97, -23.97], [-60.75, -24.5], [-60.85, -24.75], [-60.75, -25.0], [-60.97, -25.53], [-61.5, -25.75], [-61.75, -25.65], [-62.0, -25.75], [-62.53, -25.53], [-62.75, -25.0], [-62.65, -24.75], [-62.75, -24.5], [-62.65, -24.25], [-62.75, -24.0], [-62.65, -23.75], [-62.68, -23.68], [-63.03, -23.53], [-63.25, -23.0], [-63.15, -22.75], [-63.25, -22.5], [-63.15, -22.25]]]]}, "2012-11-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.15, -22.25], [-63.25, -22.0], [-63.03, -21.47], [-62.68, -21.32], [-62.65, -21.25], [-62.75, -21.0], [-62.65, -20.75], [-62.75, -20.5], [-62.65, -20.25], [-62.75, -20.0], [-62.53, -19.47], [-62.0, -19.25], [-61.75, -19.35], [-61.5, -19.25], [-60.97, -19.47], [-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], [-60.46, -22.0], [-60.25, -22.5], [-60.47, -23.03], [-60.82, -23.18], [-60.97, -23.53], [-61.32, -23.68], [-61.35, -23.75], [-61.32, -23.82], [-60.97, -23.97], [-60.75, -24.5], [-60.85, -24.75], [-60.75, -25.0], [-60.97, -25.53], [-61.5, -25.75], [-61.75, -25.65], [-62.0, -25.75], [-62.53, -25.53], [-62.75, -25.0], [-62.65, -24.75], [-62.75, -24.5], [-62.65, -24.25], [-62.75, -24.0], [-62.65, -23.75], [-62.68, -23.68], [-63.03, -23.53], [-63.25, -23.0], [-63.15, -22.75], [-63.25, -22.5], [-63.15, -22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.154609551820784}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.5093504968108125}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.300818757328955, 19.77473602828445, 22.50771368502177]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.99573624557314, 18.220753743818193, 21.315472647818467]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.158690897232524, -7.586226753275572, -4.783133839924345]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.154609551820784, -8.508596467214602, -5.236838955946496]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0008288012196536, -2.190610094301222, -1.358854929017517]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.464215072157817, -2.4684712051355966, -1.458309442374277]}}