{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:01.664443", "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-Nov-02_to_2010-Nov-06_101.5_28.5"}, "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": 2010110000171}, "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": "November 02 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 06 2010"}, "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": 60162.22637718216}, "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": ["China"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 28.5}, "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": 101.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "101.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 100.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 103.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.85, 28.25], [100.75, 28.5], [100.97, 29.03], [101.32, 29.18], [101.47, 29.53], [102.0, 29.75], [102.53, 29.53], [102.7, 29.13], [103.0, 29.25], [103.53, 29.03], [103.75, 28.5], [103.65, 28.25], [103.75, 28.0], [103.54, 27.5], [103.75, 27.0], [103.53, 26.47], [103.0, 26.25], [102.75, 26.35], [102.5, 26.25], [102.25, 26.35], [102.0, 26.25], [101.47, 26.47], [101.32, 26.82], [100.97, 26.97], [100.75, 27.5], [100.85, 27.75], [100.75, 28.0], [100.85, 28.25]]]]}, "2010-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.88, 27.2], [100.75, 27.5], [100.85, 27.75], [100.75, 28.0], [100.85, 28.25], [100.75, 28.5], [100.97, 29.03], [101.32, 29.18], [101.47, 29.53], [102.0, 29.75], [102.53, 29.53], [102.7, 29.13], [103.0, 29.25], [103.53, 29.03], [103.75, 28.5], [103.65, 28.25], [103.75, 28.0], [103.54, 27.5], [103.75, 27.0], [103.53, 26.47], [103.0, 26.25], [102.75, 26.35], [102.68, 26.32], [102.53, 25.97], [102.0, 25.75], [101.75, 25.85], [101.5, 25.75], [101.25, 25.85], [101.18, 25.82], [101.03, 25.47], [100.5, 25.25], [99.97, 25.47], [99.75, 26.0], [99.97, 26.53], [100.32, 26.68], [100.47, 27.03], [100.88, 27.2]]]]}, "2010-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 29.53], [100.5, 29.75], [100.75, 29.65], [101.0, 29.75], [101.25, 29.65], [101.5, 29.75], [101.75, 29.65], [102.0, 29.75], [102.53, 29.53], [102.7, 29.13], [103.0, 29.25], [103.53, 29.03], [103.75, 28.5], [103.65, 28.25], [103.75, 28.0], [103.54, 27.5], [103.75, 27.0], [103.53, 26.47], [103.0, 26.25], [102.75, 26.35], [102.68, 26.32], [102.53, 25.97], [102.0, 25.75], [101.75, 25.85], [101.5, 25.75], [101.25, 25.85], [101.18, 25.82], [101.03, 25.47], [100.5, 25.25], [99.97, 25.47], [99.75, 26.0], [99.97, 26.53], [100.32, 26.68], [100.47, 27.03], [100.88, 27.2], [100.75, 27.5], [100.85, 27.75], [100.82, 27.82], [100.75, 27.85], [100.5, 27.75], [99.97, 27.97], [99.75, 28.5], [99.85, 28.75], [99.75, 29.0], [99.97, 29.53]]]]}, "2010-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 29.53], [100.5, 29.75], [100.75, 29.65], [101.0, 29.75], [101.25, 29.65], [101.5, 29.75], [101.75, 29.65], [102.0, 29.75], [102.53, 29.53], [102.75, 29.0], [102.53, 28.47], [102.18, 28.32], [102.15, 28.25], [102.25, 28.0], [102.13, 27.7], [102.53, 27.53], [102.75, 27.0], [102.65, 26.75], [102.75, 26.5], [102.53, 25.97], [102.0, 25.75], [101.75, 25.85], [101.5, 25.75], [101.25, 25.85], [101.18, 25.82], [101.03, 25.47], [100.5, 25.25], [99.97, 25.47], [99.75, 26.0], [99.97, 26.53], [100.32, 26.68], [100.47, 27.03], [101.0, 27.25], [101.25, 27.15], [101.32, 27.18], [101.38, 27.3], [100.97, 27.47], [100.82, 27.82], [100.75, 27.85], [100.5, 27.75], [99.97, 27.97], [99.75, 28.5], [99.85, 28.75], [99.75, 29.0], [99.97, 29.53]]]]}, "2010-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[99.97, 29.53], [100.5, 29.75], [100.75, 29.65], [101.0, 29.75], [101.25, 29.65], [101.5, 29.75], [102.03, 29.53], [102.25, 29.0], [102.15, 28.75], [102.25, 28.5], [102.03, 27.97], [101.5, 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"value": [-4.0933996468638725, -3.987126420938306, -3.8648842914098434, -4.902646510410106, -5.126565252120865]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.337612387959609, -5.049479514934546, -5.822879636695177, -8.188698636819765, -6.065412308261443]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9788556112175706, -2.0884751787396225, -1.8486144165871345, -2.1372561973333855, -1.9070254705037832]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.903775849183005, -2.616051836340587, -2.319286394024818, -3.435452790468963, -2.247649742853899]}}