{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:11.220830", "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": "2013-Aug-29_to_2013-Aug-31_62.0_40.0"}, "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": 2013080001354}, "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 29 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 31 2013"}, "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": 119443.20529540902}, "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": ["Turkmenistan", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.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": 40.0}, "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": 62.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "62.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 58.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 64.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.97, 41.53], [58.32, 41.68], [58.47, 42.03], [59.0, 42.25], 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41.68], [58.47, 42.03], [59.0, 42.25], [59.25, 42.15], [59.5, 42.25], [59.75, 42.15], [59.82, 42.18], [59.85, 42.25], [59.75, 42.5], [59.97, 43.03], [60.5, 43.25], [61.03, 43.03], [61.18, 42.68], [61.53, 42.53], [61.68, 42.18], [61.75, 42.15], [62.0, 42.25], [62.25, 42.15], [62.5, 42.25], [62.75, 42.15], [63.0, 42.25], [63.25, 42.15], [63.5, 42.25], [63.75, 42.15], [64.0, 42.25], [64.53, 42.03], [64.68, 41.68], [65.03, 41.53], [65.25, 41.0], [65.03, 40.47], [64.68, 40.32], [64.53, 39.97], [64.18, 39.82], [64.03, 39.47], [63.5, 39.25], [63.25, 39.35], [63.18, 39.32], [63.03, 38.97], [62.5, 38.75], [62.25, 38.85], [62.0, 38.75], [61.75, 38.85], [61.5, 38.75], [61.25, 38.85], [61.0, 38.75], [60.75, 38.85], [60.5, 38.75], [59.97, 38.97], [59.82, 39.32], [59.75, 39.35], [59.5, 39.25], [58.97, 39.47], [58.82, 39.82], [58.75, 39.85], [58.5, 39.75], [57.97, 39.97], [57.75, 40.5], [57.85, 40.75], [57.75, 41.0], [57.97, 41.53]]]]}, "2013-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.97, 41.53], [58.32, 41.68], [58.47, 42.03], [59.0, 42.25], [59.25, 42.15], [59.5, 42.25], [59.75, 42.15], [59.82, 42.18], [59.85, 42.25], [59.75, 42.5], [59.97, 43.03], [60.5, 43.25], [61.03, 43.03], [61.18, 42.68], [61.53, 42.53], [61.68, 42.18], [61.75, 42.15], [62.0, 42.25], [62.25, 42.15], [62.5, 42.25], [62.75, 42.15], [63.0, 42.25], [63.25, 42.15], [63.5, 42.25], [63.75, 42.15], [64.0, 42.25], [64.53, 42.03], [64.68, 41.68], [65.03, 41.53], [65.25, 41.0], [65.03, 40.47], [64.68, 40.32], [64.53, 39.97], [64.18, 39.82], [64.03, 39.47], [63.5, 39.25], [63.25, 39.35], [63.18, 39.32], [63.03, 38.97], [62.5, 38.75], [62.25, 38.85], [62.0, 38.75], [61.75, 38.85], [61.5, 38.75], [61.25, 38.85], [61.0, 38.75], [60.75, 38.85], [60.5, 38.75], [59.97, 38.97], [59.82, 39.32], [59.75, 39.35], [59.5, 39.25], [58.97, 39.47], [58.82, 39.82], [58.75, 39.85], [58.5, 39.75], [57.97, 39.97], [57.75, 40.5], [57.85, 40.75], [57.75, 41.0], [57.97, 41.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.663362461035774}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.960693480933717}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.59508933059942, 19.737522433537663, 20.626997935720908]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.741494100185093, 18.36396537285856, 19.078444859754995]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.8955196235513565, -6.575069233129675, -5.411491586120121]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.663362461035774, -7.142730980535134, -6.016905240041353]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.669056169467101, -1.7987984095545042, -1.434978481731492]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9518982694874187, -2.074079100074309, -1.6474223796424947]}}