{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:47.765170", "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-Oct-03_to_2010-Oct-06_105.0_17.5"}, "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": 2010100000219}, "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": "October 03 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 06 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 93943.80223713376}, "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": ["Laos", "Thailand", "Vietnam"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.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": ["South China Sea"]}, "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": 17.5}, "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": 105.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "105.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 103.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.97, 18.53], [103.5, 18.75], [103.75, 18.65], [103.82, 18.68], [103.97, 19.03], [104.5, 19.25], [104.75, 19.15], [105.0, 19.25], [105.25, 19.15], [105.5, 19.25], [106.03, 19.03], [106.25, 18.5], [106.15, 18.25], [106.25, 18.0], [106.15, 17.75], [106.25, 17.5], [106.03, 16.97], [105.68, 16.82], [105.53, 16.47], [105.0, 16.25], [104.5, 16.46], [104.0, 16.25], [103.47, 16.47], [103.32, 16.82], [102.97, 16.97], [102.75, 17.5], [102.85, 17.75], [102.75, 18.0], [102.97, 18.53]]]]}, "2010-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.97, 18.53], [103.5, 18.75], [103.75, 18.65], [103.82, 18.68], [103.97, 19.03], [104.5, 19.25], [104.75, 19.15], [104.82, 19.18], [104.85, 19.25], [104.75, 19.5], [104.97, 20.03], [105.32, 20.18], [105.35, 20.25], [105.25, 20.5], [105.47, 21.03], [106.0, 21.25], [106.25, 21.15], [106.5, 21.25], [106.75, 21.15], [107.0, 21.25], [107.53, 21.03], [107.75, 20.5], [107.53, 19.97], [107.18, 19.82], [107.03, 19.47], [106.68, 19.32], [106.65, 19.25], [106.75, 19.0], [106.65, 18.75], [106.68, 18.68], [107.03, 18.53], [107.25, 18.0], [107.03, 17.47], [106.63, 17.3], [106.75, 17.0], [106.53, 16.47], [106.0, 16.25], [105.75, 16.35], [105.68, 16.32], [105.53, 15.97], [105.0, 15.75], [104.75, 15.85], [104.5, 15.75], [104.25, 15.85], [104.0, 15.75], [103.47, 15.97], [103.25, 16.5], [103.35, 16.75], [103.32, 16.82], [102.97, 16.97], [102.75, 17.5], [102.85, 17.75], [102.75, 18.0], [102.97, 18.53]]]]}, "2010-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.97, 18.53], [103.5, 18.75], [103.75, 18.65], [103.82, 18.68], [103.97, 19.03], [104.5, 19.25], [104.75, 19.15], [104.82, 19.18], [104.85, 19.25], [104.75, 19.5], [104.97, 20.03], [105.32, 20.18], [105.35, 20.25], [105.25, 20.5], [105.47, 21.03], [106.0, 21.25], [106.25, 21.15], [106.5, 21.25], [106.75, 21.15], [107.0, 21.25], [107.53, 21.03], [107.75, 20.5], [107.53, 19.97], [107.18, 19.82], [107.03, 19.47], [106.68, 19.32], [106.65, 19.25], [106.75, 19.0], [106.65, 18.75], [106.68, 18.68], [107.03, 18.53], [107.25, 18.0], [107.03, 17.47], [106.63, 17.3], [106.75, 17.0], [106.53, 16.47], [106.0, 16.25], [105.75, 16.35], [105.68, 16.32], [105.53, 15.97], [105.0, 15.75], [104.75, 15.85], [104.5, 15.75], [104.25, 15.85], [104.0, 15.75], [103.47, 15.97], [103.25, 16.5], [103.35, 16.75], [103.32, 16.82], [102.97, 16.97], [102.75, 17.5], [102.85, 17.75], [102.75, 18.0], [102.97, 18.53]]]]}, "2010-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.35, 17.25], [103.25, 17.5], [103.35, 17.75], [103.25, 18.0], [103.47, 18.53], [104.0, 18.75], [104.53, 18.53], [104.68, 18.18], [104.75, 18.15], [105.0, 18.25], [105.43, 18.07], [105.32, 18.32], [104.97, 18.47], [104.75, 19.0], [104.85, 19.25], [104.75, 19.5], [104.97, 20.03], [105.32, 20.18], [105.35, 20.25], [105.25, 20.5], [105.47, 21.03], [106.0, 21.25], [106.25, 21.15], [106.5, 21.25], [106.75, 21.15], [107.0, 21.25], [107.53, 21.03], [107.75, 20.5], [107.53, 19.97], [107.18, 19.82], [107.03, 19.47], [106.68, 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.70297390259651, 17.214569895052875, 16.810618084343275, 22.940818634994912]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.4500070105690535, -3.6540101132332605, -3.4953753637913323, -2.0497022740853557]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.140405983577125, -5.039159295263232, -5.0782724105363855, -2.931890853907248]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7839094760139786, -2.7129660982756687, -2.6561098318468304, -1.5897101193979937]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1252645145274998, -3.58154382911776, -3.5632313281018675, -2.0809982908600673]}}