{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:09.464405", "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": "2010-Jul-19_to_2010-Jul-21_99.0_-72.0"}, "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": 2010070000801}, "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 19 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 21 2010"}, "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": 51995.025194867514}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -72.0}, "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": 99.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "99.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 105.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -74.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -70.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.32, -71.32], [98.47, -70.97], [98.82, -70.82], [98.97, 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[97.47, -71.97], [97.82, -71.82], [97.97, -71.47], [98.32, -71.32]]]]}, "2010-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.32, -71.32], [98.47, -70.97], [98.82, -70.82], [98.97, -70.47], [99.5, -70.25], [99.75, -70.35], [100.0, -70.25], [100.25, -70.35], [100.5, -70.25], [100.75, -70.35], [101.0, -70.25], [101.25, -70.35], [101.5, -70.25], [101.75, -70.35], [102.0, -70.25], [102.53, -70.47], [102.75, -71.0], [102.63, -71.3], [103.03, -71.47], [103.18, -71.82], [103.25, -71.85], [103.5, -71.75], [103.75, -71.85], [104.0, -71.75], [104.53, -71.97], [104.68, -72.32], [104.75, -72.35], [105.0, -72.25], [105.53, -72.47], [105.75, -73.0], [105.53, -73.53], [105.18, -73.68], [105.03, -74.03], [104.68, -74.18], [104.53, -74.53], [104.0, -74.75], [103.75, -74.65], [103.5, -74.75], [103.25, -74.65], [103.0, -74.75], [102.75, -74.65], [102.5, -74.75], [102.25, -74.65], [102.0, -74.75], [101.47, -74.53], [101.3, -74.12], [101.0, -74.25], [100.75, -74.15], [100.5, 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"description": "The daily evolution of maximum t2m.", "value": [-63.29028046018459, -63.84285306586665, -65.53827504330653]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-8.404673088084124, -10.882866095426282, -11.697880097946635]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.997118210220663, -12.334191913594339, -12.420617154080361]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.300982700236276, -1.6118552778048514, -1.6859091830910455]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3330773829335432, -1.8001852300409165, -1.7915456080467336]}}