{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:42.637680", "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": "2018-May-27_to_2018-Jun-01_312.5_-16.0"}, "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": 2018050001079}, "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": "May 27 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 01 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 92527.74991693912}, "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": -16.0}, "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": 312.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "312.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 310.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 313.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.03, -16.53], [-49.25, -16.0], [-49.03, -15.47], [-48.5, 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-16.53]]]]}, "2018-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.68, -13.32], [-48.65, -13.25], [-48.75, -13.0], [-48.53, -12.47], [-48.0, -12.25], [-47.47, -12.47], [-47.25, -13.0], [-47.35, -13.25], [-47.32, -13.32], [-46.97, -13.47], [-46.75, -14.0], [-46.85, -14.25], [-46.75, -14.5], [-46.85, -14.75], [-46.75, -15.0], [-46.85, -15.25], [-46.82, -15.32], [-46.47, -15.47], [-46.25, -16.0], [-46.47, -16.53], [-47.0, -16.75], [-47.25, -16.65], [-47.5, -16.75], [-47.75, -16.65], [-48.0, -16.75], [-48.25, -16.65], [-48.5, -16.75], [-49.03, -16.53], [-49.25, -16.0], [-49.03, -15.47], [-48.5, -15.25], [-48.25, -15.35], [-48.18, -15.32], [-48.15, -15.25], [-48.25, -15.0], [-48.15, -14.75], [-48.2, -14.62], [-48.32, -14.68], [-48.47, -15.03], [-49.0, -15.25], [-49.53, -15.03], [-49.75, -14.5], [-49.53, -13.97], [-49.18, -13.82], [-49.03, -13.47], [-48.68, -13.32]]]]}, "2018-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.53, -13.97], 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maximum t2m.", "value": [19.010924545385308, 18.66863792150741, 18.959742970616333, 18.29721717045345, 17.87524477170456, 18.53336787223401]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6807164195973456, -1.8527727004263284, -1.6715224751289337, -1.8592131623942654, -2.0781376661700177, -1.9499356992327594]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.764276989384598, -2.118608185652249, -2.057964905747667, -2.436853757361064, -2.706333686240214, -2.526034376887253]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.35871471764994, -1.5071845510364734, -1.3878655594526315, -1.4481006552241815, -1.5763656934637285, -1.482815979415206]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4382286271610878, -1.686559788771443, -1.8190024849528883, -1.7494411571662818, -1.9632297178050957, -1.7436665287056183]}}