{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:13.343956", "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": "2017-Feb-05_to_2017-Feb-07_303.5_-27.0"}, "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": 2017020000138}, "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": "February 05 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 07 2017"}, "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": 102728.971520786}, "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", "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": -27.0}, "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": 303.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.03, -24.97], [-59.68, -24.82], [-59.53, -24.47], [-59.0, -24.25], [-58.75, -24.35], [-58.5, -24.25], [-58.25, -24.35], [-58.0, -24.25], [-57.75, -24.35], [-57.5, -24.25], [-57.25, -24.35], [-57.0, -24.25], [-56.47, -24.47], [-56.32, -24.82], [-55.97, -24.97], [-55.82, -25.32], [-55.75, -25.35], [-55.5, -25.25], [-55.25, -25.35], [-55.0, -25.25], [-54.47, -25.47], [-54.25, -26.0], [-54.35, -26.25], [-54.25, -26.5], [-54.47, -27.03], [-54.82, -27.18], [-54.97, -27.53], [-55.5, -27.75], [-55.75, -27.65], [-56.0, -27.75], [-56.25, -27.65], [-56.32, -27.68], [-56.47, -28.03], [-57.0, -28.25], [-57.53, -28.03], [-57.68, -27.68], [-58.03, -27.53], [-58.18, -27.18], [-58.25, -27.15], [-58.5, -27.25], [-58.75, -27.15], [-59.0, -27.25], [-59.53, -27.03], [-59.68, -26.68], [-60.03, -26.53], [-60.25, -26.0], [-60.15, -25.75], [-60.25, -25.5], [-60.03, -24.97]]]]}, "2017-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.03, -24.97], [-59.68, -24.82], [-59.53, -24.47], [-59.0, -24.25], [-58.75, -24.35], [-58.5, -24.25], [-58.25, -24.35], [-58.0, -24.25], [-57.75, -24.35], [-57.5, -24.25], [-57.25, -24.35], [-57.0, -24.25], [-56.47, -24.47], [-56.32, -24.82], [-55.97, -24.97], [-55.82, -25.32], [-55.75, -25.35], [-55.5, -25.25], [-55.25, -25.35], [-55.0, -25.25], [-54.47, -25.47], [-54.25, -26.0], [-54.35, -26.25], [-54.25, -26.5], [-54.47, -27.03], [-54.82, -27.18], [-54.97, -27.53], [-55.5, -27.75], [-55.75, -27.65], [-56.0, -27.75], [-56.25, -27.65], [-56.32, -27.68], [-56.47, -28.03], [-57.0, -28.25], [-57.53, -28.03], [-57.68, -27.68], [-58.03, -27.53], [-58.18, -27.18], [-58.25, -27.15], [-58.5, -27.25], [-58.75, -27.15], [-59.0, -27.25], [-59.53, -27.03], [-59.68, -26.68], [-60.03, -26.53], [-60.25, -26.0], [-60.15, -25.75], [-60.25, -25.5], [-60.03, -24.97]]]]}, "2017-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.03, -24.97], [-59.68, -24.82], [-59.53, -24.47], [-59.0, -24.25], [-58.75, -24.35], [-58.5, -24.25], [-58.25, -24.35], [-58.0, -24.25], [-57.75, -24.35], [-57.5, -24.25], [-57.25, -24.35], [-57.0, -24.25], [-56.47, -24.47], [-56.32, -24.82], [-55.97, -24.97], [-55.82, -25.32], [-55.75, -25.35], [-55.5, -25.25], [-55.25, -25.35], [-55.0, -25.25], [-54.47, -25.47], [-54.25, -26.0], [-54.35, -26.25], [-54.25, -26.5], [-54.47, -27.03], [-54.82, -27.18], [-54.97, -27.53], [-55.5, -27.75], [-55.75, -27.65], [-56.0, -27.75], [-56.25, -27.65], [-56.32, -27.68], [-56.47, -28.03], [-57.0, -28.25], [-57.53, -28.03], [-57.68, -27.68], [-58.03, -27.53], [-58.18, -27.18], [-58.25, -27.15], [-58.5, -27.25], [-58.75, -27.15], [-59.0, -27.25], [-59.53, -27.03], [-59.68, -26.68], [-60.03, -26.53], [-60.25, -26.0], [-60.15, -25.75], [-60.25, -25.5], [-60.03, -24.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.011400206298106}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.7697302018250274}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.398293244653757, 23.179554293305046, 23.490352403606607]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.19828115779177, 22.296674399022038, 22.025493026850597]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.771980336256, -3.975749313347756, -3.5614609558713255]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.011400206298106, -4.900372493043449, -4.271667929564273]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5077270958559845, -1.611756204733973, -1.5015823298572535]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7819481254455942, -1.7768639356537996, -1.8206098829997284]}}