{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:52.853745", "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-Sep-26_to_2017-Sep-28_298.0_-37.5"}, "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": 2017090000680}, "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 26 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 28 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": 94075.69690769963}, "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"]}, "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": -37.5}, "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": 298.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.68, -34.82], [-65.53, -34.47], [-65.0, -34.25], 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-36.75], [-65.68, -36.68], [-65.75, -36.65], [-66.0, -36.75], [-66.53, -36.53], [-66.75, -36.0], [-66.53, -35.47], [-66.18, -35.32], [-66.03, -34.97], [-65.68, -34.82]]]]}, "2017-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.68, -34.82], [-65.53, -34.47], [-65.0, -34.25], [-64.47, -34.47], [-64.32, -34.82], [-63.97, -34.97], [-63.82, -35.32], [-63.47, -35.47], [-63.32, -35.82], [-63.25, -35.85], [-63.0, -35.75], [-62.75, -35.85], [-62.5, -35.75], [-62.25, -35.85], [-62.0, -35.75], [-61.75, -35.85], [-61.5, -35.75], [-60.97, -35.97], [-60.82, -36.32], [-60.75, -36.35], [-60.5, -36.25], [-60.25, -36.35], [-60.0, -36.25], [-59.47, -36.47], [-59.32, -36.82], [-59.25, -36.85], [-59.0, -36.75], [-58.47, -36.97], [-58.25, -37.5], [-58.47, -38.03], [-59.0, -38.25], [-59.25, -38.15], [-59.5, -38.25], [-59.75, -38.15], [-59.82, -38.18], [-59.97, -38.53], [-60.5, -38.75], [-60.75, -38.65], [-61.0, -38.75], [-61.25, -38.65], [-61.5, -38.75], [-61.75, -38.65], [-62.0, -38.75], [-62.53, -38.53], [-62.75, -38.0], [-62.65, -37.75], [-62.68, -37.68], [-62.75, -37.65], [-63.0, -37.75], [-63.25, -37.65], [-63.5, -37.75], [-63.75, -37.65], [-64.0, -37.75], [-64.25, -37.65], [-64.5, -37.75], [-64.75, -37.65], [-65.0, -37.75], [-65.53, -37.53], [-65.75, -37.0], [-65.65, -36.75], [-65.68, -36.68], [-65.75, -36.65], [-66.0, -36.75], [-66.53, -36.53], [-66.75, -36.0], [-66.53, -35.47], [-66.18, -35.32], [-66.03, -34.97], [-65.68, -34.82]]]]}, "2017-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.68, -34.82], [-65.53, -34.47], [-65.0, -34.25], [-64.47, -34.47], [-64.32, -34.82], [-63.97, -34.97], [-63.82, -35.32], [-63.47, -35.47], [-63.32, -35.82], [-63.25, -35.85], [-63.0, -35.75], [-62.75, -35.85], [-62.5, -35.75], [-62.25, -35.85], [-62.0, -35.75], [-61.75, -35.85], [-61.5, -35.75], [-60.97, -35.97], [-60.82, -36.32], [-60.75, -36.35], [-60.5, -36.25], [-60.25, -36.35], [-60.0, -36.25], [-59.47, -36.47], [-59.32, -36.82], [-59.25, 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over entire duration", "value": -4.570864402009224}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.456642027130783, 8.389773333099072, 8.756435433533966]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.250786168411594, 5.523941829557316, 6.321219635813009]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.491405799117162, -4.75973264343079, -4.461454763479725]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.274337126488092, -5.518066659414615, -5.275627874318047]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4483162862403027, -1.5351400193406384, -1.404547971689999]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5514480513200883, -1.7376195547732025, -1.5584314183179309]}}