{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:50.747313", "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-24_to_2010-Oct-28_66.5_25.0"}, "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": 2010100000952}, "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 24 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 28 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": 107794.93568620834}, "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": ["Pakistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Sea", "S.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": ["Arabian 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": 25.0}, "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": 66.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "66.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 60.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 67.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[65.97, 24.47], [65.75, 25.0], [65.97, 25.53], [66.5, 25.75], [67.03, 25.53], [67.25, 25.0], [67.07, 24.57], [67.5, 24.75], [68.03, 24.53], [68.25, 24.0], [68.03, 23.47], [67.5, 23.25], [66.97, 23.47], [66.75, 24.0], [66.93, 24.43], [66.5, 24.25], [65.97, 24.47]]]]}, "2010-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.75, 22.5], [60.97, 23.03], [61.32, 23.18], [61.47, 23.53], [62.0, 23.75], [62.5, 23.54], [63.0, 23.75], [63.25, 23.65], [63.5, 23.75], [63.75, 23.65], [63.82, 23.68], [63.85, 23.75], [63.75, 24.0], [63.97, 24.53], [64.5, 24.75], [64.75, 24.65], [64.82, 24.68], [64.85, 24.75], [64.75, 25.0], [64.97, 25.53], [65.32, 25.68], [65.47, 26.03], [66.0, 26.25], [66.25, 26.15], [66.5, 26.25], [67.03, 26.03], [67.25, 25.5], [67.15, 25.25], [67.18, 25.18], [67.53, 25.03], [67.68, 24.68], [68.03, 24.53], [68.25, 24.0], [68.03, 23.47], [67.5, 23.25], [67.25, 23.35], [67.0, 23.25], [66.75, 23.35], [66.68, 23.32], [66.53, 22.97], [66.0, 22.75], [65.75, 22.85], [65.5, 22.75], [65.25, 22.85], [65.13, 22.8], [65.25, 22.5], [65.03, 21.97], [64.68, 21.82], [64.53, 21.47], [64.0, 21.25], [63.75, 21.35], [63.5, 21.25], [63.25, 21.35], [63.0, 21.25], [62.5, 21.46], [62.18, 21.32], [62.03, 20.97], [61.5, 20.75], [61.25, 20.85], [61.0, 20.75], [60.47, 20.97], [60.25, 21.5], [60.47, 22.03], [60.82, 22.18], [60.85, 22.25], [60.75, 22.5]]]]}, "2010-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.75, 22.5], [60.97, 23.03], [61.32, 23.18], [61.47, 23.53], [62.0, 23.75], [62.5, 23.54], [63.0, 23.75], [63.25, 23.65], [63.5, 23.75], [63.75, 23.65], [63.82, 23.68], [63.85, 23.75], [63.75, 24.0], [63.97, 24.53], [64.5, 24.75], [64.75, 24.65], [64.82, 24.68], [64.85, 24.75], [64.75, 25.0], [64.97, 25.53], [65.32, 25.68], [65.47, 26.03], [66.0, 26.25], [66.25, 26.15], [66.5, 26.25], [67.03, 26.03], [67.25, 25.5], [67.15, 25.25], [67.18, 25.18], [67.53, 25.03], [67.68, 24.68], [68.03, 24.53], [68.25, 24.0], [68.03, 23.47], [67.5, 23.25], [67.25, 23.35], [67.0, 23.25], [66.75, 23.35], [66.68, 23.32], [66.53, 22.97], [66.0, 22.75], [65.75, 22.85], [65.5, 22.75], [65.25, 22.85], [65.13, 22.8], [65.25, 22.5], [65.03, 21.97], [64.68, 21.82], [64.53, 21.47], [64.0, 21.25], [63.75, 21.35], [63.5, 21.25], [63.25, 21.35], [63.0, 21.25], [62.5, 21.46], [62.18, 21.32], [62.03, 20.97], [61.5, 20.75], [61.25, 20.85], [61.0, 20.75], [60.47, 20.97], [60.25, 21.5], [60.47, 22.03], [60.82, 22.18], [60.85, 22.25], [60.75, 22.5]]]]}, "2010-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.75, 22.5], [60.97, 23.03], [61.32, 23.18], [61.47, 23.53], [62.0, 23.75], [62.5, 23.54], [63.0, 23.75], [63.25, 23.65], [63.5, 23.75], [63.75, 23.65], [63.82, 23.68], [63.85, 23.75], [63.75, 24.0], [63.97, 24.53], [64.5, 24.75], [64.75, 24.65], [64.82, 24.68], [64.85, 24.75], [64.75, 25.0], [64.97, 25.53], [65.32, 25.68], [65.47, 26.03], [66.0, 26.25], [66.25, 26.15], [66.5, 26.25], [67.03, 26.03], [67.25, 25.5], [67.15, 25.25], [67.18, 25.18], [67.53, 25.03], [67.75, 24.5], [67.65, 24.25], [67.75, 24.0], [67.53, 23.47], [67.0, 23.25], [66.75, 23.35], [66.68, 23.32], [66.53, 22.97], [66.0, 22.75], [65.75, 22.85], [65.5, 22.75], [65.25, 22.85], [65.13, 22.8], [65.25, 22.5], [65.03, 21.97], [64.68, 21.82], [64.53, 21.47], [64.0, 21.25], [63.75, 21.35], [63.5, 21.25], [63.25, 21.35], [63.0, 21.25], [62.5, 21.46], [62.18, 21.32], [62.03, 20.97], [61.5, 20.75], [61.25, 20.85], [61.0, 20.75], [60.47, 20.97], [60.25, 21.5], [60.47, 22.03], [60.82, 22.18], [60.85, 22.25], [60.75, 22.5]]]]}, "2010-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[66.5, 25.75], [67.03, 25.53], [67.25, 25.0], [67.03, 24.47], [66.5, 24.25], [66.2, 24.38], [66.03, 23.97], [65.5, 23.75], [64.97, 23.97], [64.75, 24.5], [64.97, 25.03], [65.5, 25.25], [65.8, 25.13], [65.97, 25.53], [66.5, 25.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.9905679120562354}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.191828177240982}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.51324934977538, 26.213501656437188, 26.154291435296557, 26.18980614994956, 26.19083408191966]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.953070480278996, 25.554189800622055, 25.489931325711837, 25.46363388896731, 25.864832799962528]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1988173982075239, -1.1662995935637503, -1.2258672374258235, -1.185146915348097, -1.1467432476482315]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3255619812942996, -1.663276606037357, -1.8165386788656974, -1.9905679120562354, -1.2168574331178093]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2605777037019692, -1.4810923161323233, -1.5705021468690548, -1.5483751443255342, -1.3618424633175787]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2825055647934078, -1.802452419734131, -2.043613608603712, -1.893481279004103, -1.3967773985195526]}}