{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:27.151337", "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-Jul-14_to_2017-Jul-16_320.0_-15.0"}, "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": 2017070000577}, "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": "July 14 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 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": 56744.20539919197}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": -15.0}, "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": 320.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "320.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 318.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 320.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.75, -14.0], [-41.53, -13.47], [-41.0, -13.25], [-40.75, -13.35], [-40.5, -13.25], [-40.25, -13.35], [-40.18, -13.32], [-40.03, -12.97], [-39.5, -12.75], [-38.97, -12.97], [-38.75, -13.5], [-38.85, -13.75], [-38.75, -14.0], [-38.85, -14.25], [-38.75, -14.5], [-38.85, -14.75], [-38.75, -15.0], [-38.85, -15.25], [-38.75, -15.5], [-38.85, -15.75], [-38.75, -16.0], [-38.85, -16.25], [-38.75, -16.5], [-38.97, -17.03], [-39.5, -17.25], [-40.03, -17.03], [-40.18, -16.68], [-40.25, -16.65], [-40.5, -16.75], [-41.03, -16.53], [-41.25, -16.0], [-41.15, -15.75], [-41.2, -15.62], [-41.5, -15.75], [-42.03, -15.53], [-42.25, -15.0], [-42.03, -14.47], [-41.68, -14.32], [-41.65, -14.25], [-41.75, -14.0]]]]}, "2017-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.75, -14.0], [-41.53, -13.47], [-41.0, -13.25], [-40.75, -13.35], [-40.5, -13.25], [-40.25, -13.35], [-40.18, -13.32], [-40.03, -12.97], [-39.5, -12.75], [-38.97, -12.97], [-38.75, -13.5], [-38.85, -13.75], [-38.75, -14.0], [-38.85, -14.25], [-38.75, -14.5], [-38.85, -14.75], [-38.75, -15.0], [-38.85, -15.25], [-38.75, -15.5], [-38.85, -15.75], [-38.75, -16.0], [-38.85, -16.25], [-38.75, -16.5], [-38.97, -17.03], [-39.5, -17.25], [-40.03, -17.03], [-40.18, -16.68], [-40.25, -16.65], [-40.5, -16.75], [-41.03, -16.53], [-41.25, -16.0], [-41.15, -15.75], [-41.2, -15.62], [-41.5, -15.75], [-42.03, -15.53], [-42.25, -15.0], [-42.03, -14.47], [-41.68, -14.32], [-41.65, -14.25], [-41.75, -14.0]]]]}, "2017-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.75, -14.0], [-41.53, -13.47], [-41.0, -13.25], [-40.75, -13.35], [-40.5, -13.25], [-40.25, -13.35], [-40.18, -13.32], [-40.03, -12.97], [-39.5, -12.75], [-38.97, -12.97], [-38.75, -13.5], [-38.85, -13.75], [-38.75, -14.0], [-38.85, -14.25], [-38.75, -14.5], [-38.85, -14.75], [-38.75, -15.0], [-38.85, -15.25], [-38.75, -15.5], [-38.85, -15.75], [-38.75, -16.0], [-38.85, -16.25], [-38.75, -16.5], [-38.97, -17.03], [-39.5, -17.25], [-40.03, -17.03], [-40.18, -16.68], [-40.25, -16.65], [-40.5, -16.75], [-41.03, -16.53], [-41.25, -16.0], [-41.15, -15.75], [-41.2, -15.62], [-41.5, -15.75], [-42.03, -15.53], [-42.25, -15.0], [-42.03, -14.47], [-41.68, -14.32], [-41.65, -14.25], [-41.75, -14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.793316312910406}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6779431885825133}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.08544382617339, 19.474483716406326, 19.491615212187185]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.383306719568566, 17.277123698274636, 17.533821676914954]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.935446528954443, -1.5706809187425363, -1.527702118050561]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.793316312910406, -1.9688049384353121, -2.0214728736029315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9502983566933845, -1.604523573210608, -1.5116223726609845]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.752506364036921, -1.8753469508753486, -1.9703927073444703]}}