{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:03.730272", "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": "2014-Aug-11_to_2014-Aug-15_83.5_33.5"}, "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": 2014080000593}, "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": "August 11 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2014"}, "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": 63924.569136331185}, "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": ["Tibetan-Plateau"]}, "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": 33.5}, "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": 83.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "83.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 81.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 86.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.25, 35.0], [84.35, 35.25], [84.25, 35.5], [84.47, 36.03], 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[85.18, 33.82], [85.03, 33.47], [84.68, 33.32], [84.65, 33.25], [84.75, 33.0], [84.53, 32.47], [84.0, 32.25], [83.75, 32.35], [83.5, 32.25], [82.97, 32.47], [82.82, 32.82], [82.47, 32.97], [82.32, 33.32], [81.97, 33.47], [81.75, 34.0]]]]}, "2014-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.97, 33.47], [80.75, 34.0], [80.97, 34.53], [81.5, 34.75], [81.75, 34.65], [82.0, 34.75], [82.25, 34.65], [82.32, 34.68], [82.47, 35.03], [83.0, 35.25], [83.25, 35.15], [83.5, 35.25], [83.75, 35.15], [84.0, 35.25], [84.25, 35.15], [84.32, 35.18], [84.35, 35.25], [84.25, 35.5], [84.47, 36.03], [85.0, 36.25], [85.53, 36.03], [85.68, 35.68], [85.75, 35.65], [86.0, 35.75], [86.25, 35.65], [86.5, 35.75], [87.03, 35.53], [87.25, 35.0], [87.15, 34.75], [87.25, 34.5], [87.03, 33.97], [86.5, 33.75], [86.25, 33.85], [86.0, 33.75], [85.75, 33.85], [85.5, 33.75], [85.25, 33.85], [85.18, 33.82], [85.03, 33.47], [84.68, 33.32], [84.65, 33.25], [84.75, 33.0], [84.53, 32.47], [84.18, 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"description": "The daily evolution of mean t2m.", "value": [1.8553918272182273, 2.777689390806586, 3.322546988461397, 2.990871364639304, 4.672335873102611]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.3887432341145427, -0.3031706486498251, 0.27362533124687616, -0.1252340026836123, 2.737172976094598]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7101261333439313, -2.549187964372214, -2.156364978950198, -2.6743306643741973, -2.2323221772688155]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.266731232830068, -3.402590247166188, -2.5795407552162146, -3.309043715857513, -2.4595789958349883]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6457849213967393, -1.6380164546152278, -1.3720273890992163, -1.7667962434646267, -1.5280741906798478]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9587945003969127, -2.028511625431969, -1.7639665859772031, -2.3746747815944564, -1.8058727914812025]}}