{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:35.913916", "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": "2012-Oct-19_to_2012-Oct-24_63.0_32.0"}, "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": 2012100000766}, "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 19 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 287123.9340008255}, "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": ["Afghanistan", "Iran", "Pakistan", "Turkmenistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia", "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": 32.0}, "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": 63.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "63.0\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": 66.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 38.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[58.47, 34.53], [59.0, 34.75], [59.43, 34.57], [59.32, 34.82], [58.97, 34.97], [58.75, 35.5], [58.97, 36.03], [59.5, 36.25], [60.03, 36.03], [60.18, 35.68], [60.53, 35.53], [60.75, 35.0], [60.53, 34.47], [60.0, 34.25], [59.57, 34.43], [59.68, 34.18], [60.03, 34.03], [60.25, 33.5], [60.03, 32.97], [59.5, 32.75], [58.97, 32.97], [58.82, 33.32], [58.47, 33.47], [58.25, 34.0], [58.47, 34.53]]], [[[59.47, 38.53], [60.0, 38.75], [60.25, 38.65], [60.5, 38.75], [60.75, 38.65], [61.0, 38.75], [61.53, 38.53], [61.68, 38.18], [62.03, 38.03], [62.18, 37.68], [62.25, 37.65], [62.5, 37.75], [62.75, 37.65], [63.0, 37.75], [63.53, 37.53], [63.75, 37.0], [63.65, 36.75], [63.75, 36.5], [63.53, 35.97], [63.0, 35.75], [62.75, 35.85], [62.5, 35.75], [62.25, 35.85], [62.0, 35.75], [61.47, 35.97], [61.32, 36.32], [60.97, 36.47], [60.82, 36.82], [60.75, 36.85], [60.5, 36.75], [59.97, 36.97], [59.82, 37.32], [59.47, 37.47], [59.25, 38.0], [59.47, 38.53]]]]}, "2012-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.75, 35.0], [57.97, 35.53], [58.5, 35.75], [58.75, 35.65], [58.82, 35.68], [58.97, 36.03], [59.5, 36.25], [60.03, 36.03], [60.18, 35.68], [60.5, 35.54], [61.0, 35.75], [61.53, 35.53], [61.68, 35.18], [61.75, 35.15], [62.0, 35.25], [62.25, 35.15], [62.32, 35.18], [62.46, 35.5], [62.32, 35.82], [62.25, 35.85], [62.0, 35.75], [61.47, 35.97], [61.32, 36.32], [60.97, 36.47], [60.82, 36.82], [60.75, 36.85], [60.5, 36.75], [59.97, 36.97], [59.82, 37.32], [59.47, 37.47], [59.25, 38.0], [59.47, 38.53], [60.0, 38.75], [60.25, 38.65], [60.5, 38.75], [60.75, 38.65], [61.0, 38.75], [61.53, 38.53], [61.68, 38.18], [62.03, 38.03], [62.18, 37.68], [62.25, 37.65], [62.5, 37.75], [62.75, 37.65], [63.0, 37.75], [63.53, 37.53], [63.75, 37.0], [63.65, 36.75], [63.75, 36.5], [63.65, 36.25], [63.68, 36.18], [63.75, 36.15], [64.0, 36.25], [64.25, 36.15], [64.5, 36.25], [64.75, 36.15], [65.0, 36.25], [65.53, 36.03], [65.75, 35.5], [65.53, 34.97], [65.18, 34.82], [65.03, 34.47], [64.68, 34.32], [64.53, 33.97], [64.0, 33.75], [63.75, 33.85], [63.5, 33.75], [63.2, 33.88], [63.03, 33.47], [62.68, 33.32], [62.65, 33.25], [62.68, 33.18], [63.03, 33.03], [63.18, 32.68], [63.25, 32.65], [63.5, 32.75], [64.03, 32.53], [64.25, 32.0], [64.15, 31.75], [64.25, 31.5], [64.03, 30.97], [63.68, 30.82], [63.53, 30.47], [63.18, 30.32], [63.04, 30.0], [63.25, 29.5], [63.03, 28.97], [62.68, 28.82], [62.53, 28.47], [62.0, 28.25], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.75, 29.0], [60.85, 29.25], [60.75, 29.5], [60.93, 29.93], [60.5, 29.75], [59.97, 29.97], [59.75, 30.5], [59.96, 31.0], [59.82, 31.32], [59.47, 31.47], [59.25, 32.0], [59.35, 32.25], [59.32, 32.32], [58.97, 32.47], [58.82, 32.82], [58.47, 32.97], [58.25, 33.5], [58.35, 33.75], [58.25, 34.0], [58.35, 34.25], [58.32, 34.32], [57.97, 34.47], [57.75, 35.0]], [[61.2, 30.38], [61.07, 30.07], [61.38, 30.2], [61.32, 30.32], [61.2, 30.38]]]]}, "2012-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.75, 35.0], [57.97, 35.53], [58.5, 35.75], [58.75, 35.65], [58.82, 35.68], [58.97, 36.03], [59.5, 36.25], [60.03, 36.03], [60.18, 35.68], [60.5, 35.54], [61.0, 35.75], [61.53, 35.53], [61.68, 35.18], [61.75, 35.15], [62.0, 35.25], [62.25, 35.15], [62.32, 35.18], [62.46, 35.5], [62.32, 35.82], [62.25, 35.85], [62.0, 35.75], [61.47, 35.97], [61.32, 36.32], [60.97, 36.47], [60.82, 36.82], [60.75, 36.85], [60.5, 36.75], [59.97, 36.97], [59.82, 37.32], [59.47, 37.47], [59.25, 38.0], [59.47, 38.53], [60.0, 38.75], [60.25, 38.65], [60.5, 38.75], [60.75, 38.65], [61.0, 38.75], [61.53, 38.53], [61.68, 38.18], [62.03, 38.03], [62.18, 37.68], [62.25, 37.65], [62.5, 37.75], [62.75, 37.65], [63.0, 37.75], [63.53, 37.53], [63.75, 37.0], [63.65, 36.75], [63.75, 36.5], [63.65, 36.25], [63.68, 36.18], [63.75, 36.15], [64.0, 36.25], [64.25, 36.15], [64.5, 36.25], [64.75, 36.15], [65.0, 36.25], [65.53, 36.03], [65.75, 35.5], [65.53, 34.97], [65.18, 34.82], [65.03, 34.47], [64.68, 34.32], [64.53, 33.97], [64.0, 33.75], [63.75, 33.85], [63.5, 33.75], [63.2, 33.88], [63.03, 33.47], [62.68, 33.32], [62.65, 33.25], [62.68, 33.18], [63.0, 33.04], [63.5, 33.25], [63.75, 33.15], [64.0, 33.25], [64.25, 33.15], [64.5, 33.25], [64.75, 33.15], [65.0, 33.25], [65.53, 33.03], [65.68, 32.68], [66.03, 32.53], [66.25, 32.0], [66.04, 31.5], [66.25, 31.0], [66.03, 30.47], [65.5, 30.25], [65.2, 30.38], [65.03, 29.97], [64.5, 29.75], [64.25, 29.85], [64.0, 29.75], [63.75, 29.85], [63.68, 29.82], [63.53, 29.47], [63.18, 29.32], [63.03, 28.97], [62.68, 28.82], [62.53, 28.47], [62.0, 28.25], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.75, 29.0], [60.85, 29.25], [60.75, 29.5], [60.85, 29.75], [60.82, 29.82], [60.75, 29.85], [60.5, 29.75], [59.97, 29.97], [59.75, 30.5], [59.96, 31.0], [59.82, 31.32], [59.47, 31.47], [59.25, 32.0], [59.35, 32.25], [59.32, 32.32], [58.97, 32.47], [58.82, 32.82], [58.47, 32.97], [58.25, 33.5], [58.35, 33.75], [58.25, 34.0], [58.35, 34.25], [58.32, 34.32], [57.97, 34.47], [57.75, 35.0]]]]}, "2012-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.75, 35.0], [57.97, 35.53], [58.5, 35.75], [58.75, 35.65], [59.0, 35.75], [59.25, 35.65], [59.5, 35.75], [60.03, 35.53], [60.18, 35.18], [60.3, 35.13], [60.47, 35.53], [61.0, 35.75], [61.53, 35.53], [61.68, 35.18], [61.75, 35.15], [62.0, 35.25], [62.25, 35.15], [62.32, 35.18], [62.46, 35.5], [62.25, 36.0], [62.47, 36.53], [63.0, 36.75], [63.53, 36.53], [63.68, 36.18], [63.75, 36.15], [64.0, 36.25], [64.25, 36.15], [64.5, 36.25], [64.75, 36.15], [65.0, 36.25], [65.53, 36.03], [65.75, 35.5], [65.53, 34.97], [65.18, 34.82], [65.03, 34.47], [64.68, 34.32], [64.53, 33.97], [64.0, 33.75], [63.75, 33.85], [63.5, 33.75], [63.2, 33.88], [63.03, 33.47], [62.68, 33.32], [62.65, 33.25], [62.68, 33.18], [63.0, 33.04], [63.5, 33.25], [63.75, 33.15], [64.0, 33.25], [64.25, 33.15], [64.5, 33.25], [64.75, 33.15], [65.0, 33.25], [65.53, 33.03], [65.68, 32.68], [66.03, 32.53], [66.18, 32.18], [66.53, 32.03], [66.75, 31.5], [66.53, 30.97], [66.18, 30.82], [66.03, 30.47], [65.5, 30.25], [65.2, 30.38], [65.03, 29.97], [64.5, 29.75], [64.25, 29.85], [64.0, 29.75], [63.75, 29.85], [63.68, 29.82], [63.53, 29.47], [63.18, 29.32], [63.03, 28.97], [62.68, 28.82], [62.53, 28.47], [62.0, 28.25], [61.75, 28.35], [61.5, 28.25], [60.97, 28.47], [60.75, 29.0], [60.85, 29.25], [60.75, 29.5], [60.85, 29.75], [60.82, 29.82], [60.75, 29.85], [60.5, 29.75], [59.97, 29.97], [59.75, 30.5], [59.96, 31.0], [59.82, 31.32], [59.47, 31.47], [59.25, 32.0], [59.35, 32.25], [59.32, 32.32], [58.97, 32.47], [58.82, 32.82], [58.47, 32.97], [58.25, 33.5], [58.46, 34.0], [58.32, 34.32], [57.97, 34.47], [57.75, 35.0]], [[59.68, 33.68], [59.75, 33.65], [59.82, 33.68], [59.85, 33.75], [59.82, 33.82], [59.75, 33.85], [59.63, 33.8], [59.68, 33.68]]]]}, "2012-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.25, 30.5], [60.47, 31.03], [60.82, 31.18], [60.97, 31.53], [61.5, 31.75], [61.75, 31.65], [61.82, 31.68], [61.85, 31.75], [61.75, 32.0], [61.97, 32.53], [62.5, 32.75], [62.75, 32.65], [62.82, 32.68], [62.97, 33.03], [63.5, 33.25], [63.75, 33.15], [64.0, 33.25], [64.25, 33.15], [64.5, 33.25], [64.75, 33.15], [65.0, 33.25], [65.53, 33.03], [65.68, 32.68], [66.03, 32.53], [66.18, 32.18], [66.53, 32.03], [66.75, 31.5], [66.53, 30.97], [66.18, 30.82], [66.03, 30.47], [65.5, 30.25], [65.2, 30.38], [65.03, 29.97], [64.5, 29.75], [64.25, 29.85], [64.0, 29.75], [63.75, 29.85], [63.68, 29.82], [63.53, 29.47], [63.0, 29.25], [62.75, 29.35], [62.68, 29.32], [62.53, 28.97], [62.0, 28.75], [61.47, 28.97], [61.32, 29.32], [60.97, 29.47], [60.82, 29.82], [60.47, 29.97], [60.25, 30.5]]]]}, "2012-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[65.0, 33.25], [65.53, 33.03], [65.68, 32.68], [66.03, 32.53], [66.18, 32.18], [66.53, 32.03], [66.75, 31.5], [66.53, 30.97], [66.0, 30.75], [65.75, 30.85], [65.5, 30.75], [64.97, 30.97], [64.8, 31.38], [64.5, 31.25], [63.97, 31.47], [63.75, 32.0], [63.97, 32.53], [64.32, 32.68], [64.47, 33.03], [65.0, 33.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.631801844721053}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.06310545716973}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.096722267904795, 11.185336760955522, 11.648592316566123, 12.372387254186208, 15.415393709517389, 14.001643872819557]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.754602459029741, 0.3776177205451745, 1.1535076779089763, 1.403961948650931, 11.342565551538598, 12.767329893229146]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.374226908126887, -5.324991750972221, -5.376395976414341, -4.851419298742473, -4.127476864178443, -3.4397178577104226]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.0016482649742215, -7.631801844721053, -7.135921689134477, -6.525052554861247, -5.301228985461137, -3.6002769117891944]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.386046314215705, -1.6147644130445515, -1.7230339149075045, -1.6449113072358095, -1.5025023235015045, -1.4789091829748122]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.43927057764719, -2.116506152659559, -2.1728221552635016, -2.095222915327452, -1.8460773404437818, -1.6031756673442428]}}