{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:53.647526", "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-Jul-26_to_2014-Aug-07_142.5_58.5"}, "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": 2014070001192}, "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": "July 26 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 07 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 13}, "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": 88947.98411158321}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Far-East"]}, "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": ["Sea of Okhotsk"]}, "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": 58.5}, "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": 142.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 141.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.47, 60.03], [149.0, 60.25], [149.53, 60.03], [149.68, 59.68], [149.75, 59.65], [150.0, 59.75], [150.53, 59.53], [150.75, 59.0], [150.53, 58.47], [150.0, 58.25], [149.75, 58.35], [149.5, 58.25], [149.25, 58.35], [149.0, 58.25], [148.47, 58.47], [148.25, 59.0], [148.35, 59.25], [148.25, 59.5], [148.47, 60.03]]]]}, "2014-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.75, 59.0], [140.97, 59.53], [141.5, 59.75], [141.75, 59.65], [142.0, 59.75], [142.53, 59.53], [142.75, 59.0], [142.53, 58.47], [142.0, 58.25], [141.75, 58.35], [141.5, 58.25], [140.97, 58.47], [140.75, 59.0]]], [[[143.75, 60.5], [143.85, 60.75], [143.75, 61.0], [143.97, 61.53], [144.5, 61.75], [144.75, 61.65], [145.0, 61.75], [145.25, 61.65], [145.5, 61.75], [145.75, 61.65], [146.0, 61.75], [146.25, 61.65], [146.5, 61.75], [146.75, 61.65], [147.0, 61.75], [147.25, 61.65], [147.5, 61.75], [148.03, 61.53], [148.18, 61.18], [148.25, 61.15], [148.5, 61.25], [148.75, 61.15], [149.0, 61.25], [149.53, 61.03], [149.68, 60.68], [150.03, 60.53], [150.25, 60.0], [150.15, 59.75], [150.18, 59.68], [150.53, 59.53], [150.75, 59.0], [150.53, 58.47], [150.0, 58.25], [149.75, 58.35], [149.5, 58.25], [149.25, 58.35], [149.0, 58.25], [148.47, 58.47], [148.32, 58.82], [148.25, 58.85], [148.0, 58.75], [147.75, 58.85], [147.5, 58.75], [147.25, 58.85], [147.0, 58.75], [146.75, 58.85], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.75, 58.85], [145.5, 58.75], [145.25, 58.85], [145.0, 58.75], [144.75, 58.85], [144.5, 58.75], [143.97, 58.97], [143.75, 59.5], [143.85, 59.75], [143.75, 60.0], [143.85, 60.25], [143.75, 60.5]]]]}, "2014-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.75, 59.0], [140.97, 59.53], [141.5, 59.75], [141.75, 59.65], [142.0, 59.75], [142.53, 59.53], [142.75, 59.0], [142.53, 58.47], [142.0, 58.25], [141.75, 58.35], [141.5, 58.25], [140.97, 58.47], [140.75, 59.0]]], [[[143.75, 60.5], [143.85, 60.75], [143.75, 61.0], [143.97, 61.53], [144.5, 61.75], [144.75, 61.65], [145.0, 61.75], [145.25, 61.65], [145.5, 61.75], [145.75, 61.65], [146.0, 61.75], [146.25, 61.65], [146.5, 61.75], [146.75, 61.65], [147.0, 61.75], [147.25, 61.65], [147.5, 61.75], [148.03, 61.53], [148.18, 61.18], [148.25, 61.15], [148.5, 61.25], [148.75, 61.15], [149.0, 61.25], [149.53, 61.03], [149.68, 60.68], [150.03, 60.53], [150.25, 60.0], [150.15, 59.75], [150.18, 59.68], [150.53, 59.53], [150.75, 59.0], [150.53, 58.47], [150.0, 58.25], [149.75, 58.35], [149.5, 58.25], [149.25, 58.35], [149.0, 58.25], [148.47, 58.47], [148.32, 58.82], [148.25, 58.85], [148.0, 58.75], [147.75, 58.85], [147.5, 58.75], [147.25, 58.85], [147.0, 58.75], [146.75, 58.85], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.75, 58.85], [145.5, 58.75], [145.25, 58.85], [145.0, 58.75], [144.75, 58.85], [144.5, 58.75], [143.97, 58.97], [143.75, 59.5], [143.85, 59.75], [143.75, 60.0], [143.85, 60.25], [143.75, 60.5]]]]}, "2014-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, 59.53], [141.5, 59.75], [141.75, 59.65], [142.0, 59.75], [142.25, 59.65], [142.5, 59.75], [142.75, 59.65], [143.0, 59.75], [143.25, 59.65], [143.5, 59.75], [143.75, 59.65], [143.82, 59.68], [143.85, 59.75], [143.75, 60.0], [143.85, 60.25], [143.75, 60.5], [143.85, 60.75], [143.75, 61.0], [143.97, 61.53], [144.5, 61.75], [144.75, 61.65], [145.0, 61.75], [145.25, 61.65], [145.5, 61.75], [145.75, 61.65], [146.0, 61.75], [146.25, 61.65], [146.5, 61.75], [146.75, 61.65], [147.0, 61.75], [147.25, 61.65], [147.5, 61.75], [148.03, 61.53], [148.18, 61.18], [148.25, 61.15], [148.5, 61.25], [148.75, 61.15], [149.0, 61.25], [149.53, 61.03], [149.68, 60.68], [150.03, 60.53], [150.25, 60.0], [150.15, 59.75], [150.25, 59.5], [150.03, 58.97], [149.5, 58.75], [149.25, 58.85], [149.0, 58.75], [148.75, 58.85], [148.5, 58.75], [148.25, 58.85], [148.0, 58.75], [147.75, 58.85], [147.5, 58.75], [147.25, 58.85], [147.0, 58.75], [146.75, 58.85], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.75, 58.85], [145.5, 58.75], [145.25, 58.85], [145.0, 58.75], [144.75, 58.85], [144.68, 58.82], [144.53, 58.47], [144.18, 58.32], [144.03, 57.97], [143.68, 57.82], [143.53, 57.47], [143.0, 57.25], [142.75, 57.35], [142.5, 57.25], [142.25, 57.35], [142.0, 57.25], [141.47, 57.47], [141.32, 57.82], [140.97, 57.97], [140.75, 58.5], [140.85, 58.75], [140.75, 59.0], [140.97, 59.53]]]]}, "2014-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, 59.53], [141.5, 59.75], [141.75, 59.65], [142.0, 59.75], [142.25, 59.65], [142.5, 59.75], [142.75, 59.65], [143.0, 59.75], [143.25, 59.65], [143.5, 59.75], [143.75, 59.65], [144.0, 59.75], [144.43, 59.57], [144.25, 60.0], [144.35, 60.25], [144.25, 60.5], [144.47, 61.03], [145.0, 61.25], [145.53, 61.03], [145.68, 60.68], [145.75, 60.65], [146.0, 60.75], [146.25, 60.65], [146.5, 60.75], [146.75, 60.65], [147.0, 60.75], [147.25, 60.65], [147.5, 60.75], [148.03, 60.53], [148.18, 60.18], [148.25, 60.15], [148.5, 60.25], [148.75, 60.15], [149.0, 60.25], [149.53, 60.03], [149.75, 59.5], [149.53, 58.97], [149.0, 58.75], [148.75, 58.85], [148.5, 58.75], [148.25, 58.85], [148.0, 58.75], [147.75, 58.85], [147.5, 58.75], [147.25, 58.85], [147.0, 58.75], [146.75, 58.85], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.75, 58.85], [145.5, 58.75], [144.97, 58.97], [144.82, 59.32], [144.57, 59.43], [144.75, 59.0], [144.53, 58.47], [144.18, 58.32], [144.03, 57.97], [143.68, 57.82], [143.53, 57.47], [143.0, 57.25], [142.75, 57.35], [142.5, 57.25], [142.25, 57.35], [142.0, 57.25], [141.47, 57.47], [141.32, 57.82], [140.97, 57.97], [140.75, 58.5], [140.85, 58.75], [140.75, 59.0], [140.97, 59.53]]]]}, "2014-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, 59.03], [141.32, 59.18], [141.47, 59.53], [142.0, 59.75], [142.25, 59.65], [142.5, 59.75], [142.75, 59.65], [143.0, 59.75], [143.25, 59.65], [143.5, 59.75], [143.75, 59.65], [144.0, 59.75], [144.53, 59.53], [144.75, 59.0], [144.53, 58.47], [144.18, 58.32], [144.03, 57.97], [143.68, 57.82], [143.53, 57.47], [143.0, 57.25], [142.75, 57.35], [142.5, 57.25], [142.25, 57.35], [142.0, 57.25], [141.47, 57.47], [141.32, 57.82], [140.97, 57.97], [140.75, 58.5], [140.97, 59.03]]], [[[145.25, 59.5], [145.47, 60.03], [146.0, 60.25], [146.25, 60.15], [146.5, 60.25], [146.75, 60.15], [147.0, 60.25], [147.25, 60.15], [147.5, 60.25], [147.75, 60.15], [148.0, 60.25], [148.25, 60.15], [148.5, 60.25], [148.75, 60.15], [149.0, 60.25], [149.53, 60.03], [149.75, 59.5], [149.53, 58.97], [149.0, 58.75], [148.75, 58.85], [148.5, 58.75], [148.25, 58.85], [148.0, 58.75], [147.75, 58.85], [147.5, 58.75], [147.25, 58.85], [147.0, 58.75], [146.75, 58.85], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.47, 58.97], [145.25, 59.5]]]]}, "2014-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.25, 59.0], [141.47, 59.53], [142.0, 59.75], [142.53, 59.53], [142.68, 59.18], [142.75, 59.15], [143.0, 59.25], [143.53, 59.03], [143.75, 58.5], [143.53, 57.97], [143.0, 57.75], [142.75, 57.85], [142.68, 57.82], [142.53, 57.47], [142.0, 57.25], [141.47, 57.47], [141.25, 58.0], [141.35, 58.25], [141.25, 58.5], [141.35, 58.75], [141.25, 59.0]]], [[[145.25, 59.5], [145.47, 60.03], [146.0, 60.25], [146.25, 60.15], [146.5, 60.25], [146.75, 60.15], [147.0, 60.25], [147.25, 60.15], [147.5, 60.25], [147.75, 60.15], [148.0, 60.25], [148.25, 60.15], [148.5, 60.25], [148.75, 60.15], [149.0, 60.25], [149.53, 60.03], [149.75, 59.5], [149.53, 58.97], [149.0, 58.75], [148.75, 58.85], [148.5, 58.75], [148.25, 58.85], [148.0, 58.75], [147.75, 58.85], [147.5, 58.75], [147.25, 58.85], [147.0, 58.75], [146.75, 58.85], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.47, 58.97], [145.25, 59.5]]]]}, "2014-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.25, 59.0], [141.47, 59.53], [142.0, 59.75], [142.53, 59.53], [142.68, 59.18], [142.75, 59.15], [143.0, 59.25], [143.53, 59.03], [143.75, 58.5], [143.53, 57.97], [143.18, 57.82], [143.03, 57.47], [142.5, 57.25], [142.25, 57.35], [142.0, 57.25], [141.47, 57.47], [141.25, 58.0], [141.35, 58.25], [141.25, 58.5], [141.35, 58.75], [141.25, 59.0]]], [[[145.25, 59.5], [145.47, 60.03], [146.0, 60.25], [146.25, 60.15], [146.5, 60.25], [147.03, 60.03], [147.25, 59.5], [147.03, 58.97], [146.5, 58.75], [146.25, 58.85], [146.0, 58.75], [145.47, 58.97], [145.25, 59.5]]]]}, "2014-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.35, 58.75], [141.25, 59.0], [141.47, 59.53], [142.0, 59.75], [142.53, 59.53], [142.68, 59.18], [142.75, 59.15], [143.0, 59.25], [143.53, 59.03], [143.75, 58.5], [143.65, 58.25], [143.75, 58.0], [143.53, 57.47], [143.0, 57.25], [142.75, 57.35], [142.5, 57.25], [142.25, 57.35], [142.18, 57.32], [142.03, 56.97], [141.5, 56.75], [140.97, 56.97], [140.75, 57.5], [140.97, 58.03], [141.32, 58.18], [141.35, 58.25], [141.25, 58.5], [141.35, 58.75]]], [[[145.97, 58.97], [145.75, 59.5], [145.97, 60.03], [146.5, 60.25], [147.03, 60.03], [147.25, 59.5], [147.03, 58.97], [146.5, 58.75], [145.97, 58.97]]]]}, "2014-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.82, 58.68], [141.97, 59.03], [142.5, 59.25], [143.03, 59.03], [143.18, 58.68], [143.53, 58.53], [143.75, 58.0], [143.53, 57.47], [143.0, 57.25], [142.75, 57.35], [142.5, 57.25], [142.25, 57.35], [142.18, 57.32], [142.03, 56.97], [141.5, 56.75], [140.97, 56.97], [140.75, 57.5], [140.97, 58.03], [141.32, 58.18], [141.47, 58.53], [141.82, 58.68]]]]}, "2014-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.82, 58.68], [141.97, 59.03], [142.5, 59.25], [143.03, 59.03], [143.18, 58.68], [143.53, 58.53], [143.75, 58.0], [143.53, 57.47], [143.0, 57.25], [142.75, 57.35], [142.5, 57.25], [142.25, 57.35], [142.18, 57.32], [142.03, 56.97], [141.5, 56.75], [140.97, 56.97], [140.75, 57.5], [140.97, 58.03], [141.32, 58.18], [141.47, 58.53], [141.82, 58.68]]]]}, "2014-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.5, 59.25], [143.03, 59.03], [143.25, 58.5], [143.03, 57.97], [142.5, 57.75], [141.97, 57.97], [141.75, 58.5], [141.97, 59.03], [142.5, 59.25]]]]}, "2014-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.5, 59.25], [143.03, 59.03], [143.25, 58.5], [143.03, 57.97], [142.5, 57.75], [141.97, 57.97], [141.75, 58.5], [141.97, 59.03], [142.5, 59.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.236571523696796}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.6542888507717897}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.062562150152758, 10.060065395693698, 8.678525404509116, 10.357132639182737, 11.205564801218316, 11.23497330640447, 11.48657034132458, 11.383599594809539, 11.464333809169489, 11.85609449808112, 11.404469398099309, 11.782219229621148, 12.39473037824115]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.42367883877182, 7.905500694542184, 5.958221508010922, 8.17210636931054, 10.531079354773567, 10.721392996399857, 11.245293203176232, 11.254481669402537, 11.290676236363822, 11.700322030646987, 11.19735337938647, 11.782219229621148, 12.39473037824115]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1664913721883323, -3.9700724080371854, -5.427963111250242, -3.6818323148665035, -2.942581723232275, -2.5902024694946872, -2.6279586072264607, -2.6100483618089427, -2.5474238094141572, -2.2198185194413327, -2.7293235431976655, -2.3790388958023527, -1.834865867502458]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.283811724649297, -5.273290065322385, -7.236571523696796, -5.0105551619416815, -3.9795559680171095, -3.331722789766104, -3.2898285202251714, -2.9672273014215307, -2.701445954130179, -2.3307443269398505, -2.9353131099131815, -2.3790388958023527, -1.834865867502458]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4414174434128557, -1.6086469419790874, -2.1111981201173937, -1.5057544786433588, -1.4055421303286142, -1.4390955549395812, -1.3884972356065834, -1.5305303809261614, -1.6055165523016528, -1.4932504657167338, -1.9392695267888782, -1.8731826623139052, -1.459361469431248]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5288067557270058, -1.939691994323981, -2.3967179274302195, -1.8140232676031405, -1.6969768392716695, -1.7140174169602864, -1.5231167010430102, -1.6569966316163496, -1.7488477771711695, -1.5871678366615853, -2.094879458015576, -1.8731826623139052, -1.459361469431248]}}