{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:16.344003", "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": "2021-Sep-22_to_2021-Sep-26_283.0_-8.5"}, "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": 2021090000660}, "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": "September 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 26 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 60848.49099906139}, "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": ["Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.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": -8.5}, "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": 283.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.75, -8.0], [-78.53, -7.47], [-78.18, -7.32], [-78.03, 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-8.0], [-78.53, -7.47], [-78.18, -7.32], [-78.03, -6.97], [-77.5, -6.75], [-76.97, -6.97], [-76.75, -7.5], [-76.87, -7.8], [-76.47, -7.97], [-76.25, -8.5], [-76.35, -8.75], [-76.32, -8.82], [-76.25, -8.85], [-76.0, -8.75], [-75.47, -8.97], [-75.25, -9.5], [-75.35, -9.75], [-75.25, -10.0], [-75.35, -10.25], [-75.25, -10.5], [-75.35, -10.75], [-75.32, -10.82], [-74.97, -10.97], [-74.82, -11.32], [-74.47, -11.47], [-74.32, -11.82], [-73.97, -11.97], [-73.75, -12.5], [-73.85, -12.75], [-73.75, -13.0], [-73.97, -13.53], [-74.5, -13.75], [-75.03, -13.53], [-75.25, -13.0], [-75.15, -12.75], [-75.18, -12.68], [-75.53, -12.53], [-75.68, -12.18], [-75.75, -12.15], [-76.0, -12.25], [-76.53, -12.03], [-76.75, -11.5], [-76.65, -11.25], [-76.68, -11.18], [-77.03, -11.03], [-77.18, -10.68], [-77.53, -10.53], [-77.75, -10.0], [-77.65, -9.75], [-77.68, -9.68], [-78.03, -9.53], [-78.25, -9.0], [-78.15, -8.75], [-78.18, -8.68], [-78.53, -8.53], [-78.75, -8.0]]]]}, "2021-09-24T11:30:00.000000000": 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-8.0]]]]}, "2021-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.75, -8.0], [-78.53, -7.47], [-78.0, -7.25], [-77.47, -7.47], [-77.32, -7.82], [-77.25, -7.85], [-77.0, -7.75], [-76.47, -7.97], [-76.25, -8.5], [-76.37, -8.8], [-75.97, -8.97], [-75.75, -9.5], [-75.85, -9.75], [-75.82, -9.82], [-75.47, -9.97], [-75.25, -10.5], [-75.46, -11.0], [-75.25, -11.5], [-75.47, -12.03], [-76.0, -12.25], [-76.53, -12.03], [-76.75, -11.5], [-76.62, -11.2], [-77.03, -11.03], [-77.18, -10.68], [-77.53, -10.53], [-77.75, -10.0], [-77.65, -9.75], [-77.75, -9.5], [-77.62, -9.2], [-78.03, -9.03], [-78.18, -8.68], [-78.53, -8.53], [-78.75, -8.0]]]]}, "2021-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.53, -12.03], [-76.75, -11.5], [-76.53, -10.97], [-76.0, -10.75], [-75.47, -10.97], [-75.25, -11.5], [-75.47, -12.03], [-76.0, -12.25], [-76.53, -12.03]]], [[[-78.25, -8.5], [-78.03, -7.97], [-77.5, -7.75], [-77.25, -7.85], [-77.0, -7.75], [-76.47, 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-1.6280635750740515, -2.0756664922838697, -1.2304012397331576, -1.2019785132255834]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3915654006355567, -2.0093286976310196, -2.745582346133631, -1.3957769932617907, -1.298818182065986]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.520445472163437, -2.149237527479338, -2.721124524661229, -1.5712190070473582, -1.5453100321999618]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8201053832067222, -2.929082957622626, -3.5995123034136896, -1.8598202831225756, -1.7634015476773268]}}