{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:07.107845", "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-15_to_2010-Nov-18_54.5_30.0"}, "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": 2010110000672}, "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 15 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 18 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": 56279.03539673348}, "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": ["Iran"]}, "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": 30.0}, "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": 54.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "54.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.47, 29.97], [52.25, 30.5], [52.47, 31.03], [53.0, 31.25], 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[57.68, 30.18], [58.03, 30.03], [58.25, 29.5], [58.03, 28.97], [57.5, 28.75], [56.97, 28.97], [56.82, 29.32], [56.75, 29.35], [56.5, 29.25], [56.2, 29.38], [56.15, 29.25], [56.18, 29.18], [56.53, 29.03], [56.75, 28.5], [56.53, 27.97], [56.0, 27.75], [55.75, 27.85], [55.5, 27.75], [54.97, 27.97], [54.82, 28.32], [54.47, 28.47], [54.3, 28.88], [54.0, 28.75], [53.47, 28.97], [53.3, 29.38], [53.0, 29.25], [52.47, 29.47], [52.25, 30.0], [52.35, 30.25], [52.25, 30.5], [52.47, 31.03]]]]}, "2010-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.47, 31.03], [52.82, 31.18], [52.97, 31.53], [53.5, 31.75], [53.75, 31.65], [54.0, 31.75], [54.53, 31.53], [54.68, 31.18], [55.03, 31.03], [55.18, 30.68], [55.25, 30.65], [55.32, 30.68], [55.47, 31.03], [56.0, 31.25], [56.53, 31.03], [56.68, 30.68], [56.75, 30.65], [57.0, 30.75], [57.53, 30.53], [57.68, 30.18], [58.03, 30.03], [58.25, 29.5], [58.03, 28.97], [57.5, 28.75], [56.97, 28.97], [56.82, 29.32], [56.75, 29.35], [56.5, 29.25], [56.2, 29.38], [56.15, 29.25], [56.18, 29.18], [56.53, 29.03], [56.75, 28.5], [56.53, 27.97], [56.0, 27.75], [55.75, 27.85], [55.5, 27.75], [54.97, 27.97], [54.82, 28.32], [54.47, 28.47], [54.3, 28.88], [54.0, 28.75], [53.47, 28.97], [53.3, 29.38], [53.0, 29.25], [52.47, 29.47], [52.25, 30.0], [52.35, 30.25], [52.25, 30.5], [52.47, 31.03]]]]}, "2010-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.97, 31.53], [53.5, 31.75], [53.75, 31.65], [54.0, 31.75], [54.53, 31.53], [54.68, 31.18], [55.03, 31.03], [55.18, 30.68], [55.25, 30.65], [55.32, 30.68], [55.47, 31.03], [56.0, 31.25], [56.53, 31.03], [56.68, 30.68], [56.75, 30.65], [57.0, 30.75], [57.53, 30.53], [57.75, 30.0], [57.53, 29.47], [57.0, 29.25], [56.75, 29.35], [56.5, 29.25], [56.2, 29.38], [56.15, 29.25], [56.18, 29.18], [56.53, 29.03], [56.75, 28.5], [56.53, 27.97], [56.0, 27.75], [55.75, 27.85], [55.5, 27.75], [54.97, 27.97], [54.82, 28.32], [54.47, 28.47], [54.3, 28.88], [54.0, 28.75], [53.47, 28.97], [53.3, 29.38], [53.0, 29.25], [52.47, 29.47], [52.25, 30.0], [52.47, 30.53], [52.88, 30.7], [52.75, 31.0], [52.97, 31.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.886645333002207}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.8494498026650312}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.730151552804955, 6.952559145007342, 6.014638922536392, 7.301269614316993]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.652157210269536, 2.6599478373710213, 2.728673722344638, 4.881513716456709]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.5258080237236555, -3.688205254751075, -4.439112079190328, -3.493469909925747]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.149519410598714, -4.6207902066418, -5.886645333002207, -4.784408714049789]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4701739227769148, -1.6045315734597143, -1.9757116286040142, -1.5936893107902]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6176676910987802, -1.92427937298604, -2.4372296687722943, -2.0843886334031296]}}