{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:38.662393", "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": "2019-Oct-06_to_2019-Oct-08_293.5_-13.0"}, "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": 2019100000272}, "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": "October 06 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 08 2019"}, "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": 105717.0178072787}, "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", "Peru"]}, "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": -13.0}, "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": 293.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "293.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 295.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, -10.47], [-69.68, -10.32], [-69.53, -9.97], [-69.0, -9.75], [-68.75, -9.85], [-68.5, -9.75], [-68.25, -9.85], [-68.0, -9.75], [-67.47, -9.97], [-67.32, -10.32], [-67.25, -10.35], [-67.0, -10.25], [-66.47, -10.47], [-66.25, -11.0], [-66.35, -11.25], [-66.25, -11.5], [-66.35, -11.75], [-66.32, -11.82], [-65.97, -11.97], [-65.75, -12.5], [-65.85, -12.75], [-65.82, -12.82], [-65.47, -12.97], [-65.32, -13.32], [-64.97, -13.47], [-64.82, -13.82], [-64.47, -13.97], [-64.25, -14.5], [-64.47, -15.03], [-65.0, -15.25], [-65.25, -15.15], [-65.5, -15.25], [-66.03, -15.03], [-66.18, -14.68], [-66.53, -14.53], [-66.68, -14.18], [-66.75, -14.15], [-67.0, -14.25], [-67.25, -14.15], [-67.5, -14.25], [-68.03, -14.03], [-68.18, -13.68], [-68.53, -13.53], [-68.75, -13.0], [-68.65, -12.75], [-68.68, -12.68], [-69.03, -12.53], [-69.18, -12.18], [-69.25, -12.15], [-69.5, -12.25], [-70.03, -12.03], [-70.25, -11.5], [-70.15, -11.25], [-70.25, -11.0], [-70.03, -10.47]]]]}, "2019-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, -10.47], [-69.68, -10.32], [-69.53, -9.97], [-69.0, -9.75], [-68.75, -9.85], [-68.5, -9.75], [-68.25, -9.85], [-68.0, -9.75], [-67.47, -9.97], [-67.32, -10.32], [-67.25, -10.35], [-67.0, -10.25], [-66.47, -10.47], [-66.25, -11.0], [-66.35, -11.25], [-66.25, -11.5], [-66.35, -11.75], [-66.32, -11.82], [-65.97, -11.97], [-65.75, -12.5], [-65.85, -12.75], [-65.82, -12.82], [-65.47, -12.97], [-65.32, -13.32], [-64.97, -13.47], [-64.82, -13.82], [-64.47, -13.97], [-64.25, -14.5], [-64.47, -15.03], [-65.0, -15.25], [-65.25, -15.15], [-65.5, -15.25], [-66.03, -15.03], [-66.18, -14.68], [-66.53, -14.53], [-66.68, -14.18], [-66.75, -14.15], [-67.0, -14.25], [-67.25, -14.15], [-67.5, -14.25], [-68.03, -14.03], [-68.18, -13.68], [-68.53, -13.53], [-68.75, -13.0], [-68.65, -12.75], [-68.68, -12.68], [-69.03, -12.53], [-69.18, -12.18], [-69.25, -12.15], [-69.5, -12.25], [-70.03, -12.03], [-70.25, -11.5], [-70.15, -11.25], [-70.25, -11.0], [-70.03, -10.47]]]]}, "2019-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.03, -10.47], [-69.68, -10.32], [-69.53, -9.97], [-69.0, -9.75], [-68.75, -9.85], [-68.5, -9.75], [-68.25, -9.85], [-68.0, -9.75], [-67.47, -9.97], [-67.32, -10.32], [-67.25, -10.35], [-67.0, -10.25], [-66.47, -10.47], [-66.25, -11.0], [-66.35, -11.25], [-66.25, -11.5], [-66.35, -11.75], [-66.32, -11.82], [-65.97, -11.97], [-65.75, -12.5], [-65.85, -12.75], [-65.82, -12.82], [-65.47, -12.97], [-65.32, -13.32], [-64.97, -13.47], [-64.82, -13.82], [-64.47, -13.97], [-64.25, -14.5], [-64.47, -15.03], [-65.0, -15.25], [-65.25, -15.15], [-65.5, -15.25], [-66.03, -15.03], [-66.18, -14.68], [-66.53, -14.53], [-66.68, -14.18], [-66.75, -14.15], [-67.0, -14.25], [-67.25, -14.15], [-67.5, -14.25], [-68.03, -14.03], [-68.18, -13.68], [-68.53, -13.53], [-68.75, -13.0], [-68.65, -12.75], [-68.68, -12.68], [-69.03, -12.53], [-69.18, -12.18], [-69.25, -12.15], [-69.5, -12.25], [-70.03, -12.03], [-70.25, -11.5], [-70.15, -11.25], [-70.25, -11.0], [-70.03, -10.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.403625595373057}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.278404648674437}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.423382914947524, 19.148221202402, 23.48744002999956]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.62885141122814, 18.218423958409346, 23.046282309015567]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.1543670916010145, -7.5075105388310295, -3.17333631559127]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.273415042337547, -8.403625595373057, -3.8526764608678263]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.2457691799764765, -3.5424730932922484, -1.4897784392803628]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.2167749971085553, -3.9199433600359335, -1.7473525336106166]}}