{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:08.899028", "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-Aug-10_to_2012-Aug-15_147.0_-3.0"}, "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": 2012080000542}, "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 10 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 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": 148213.00015891058}, "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": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "S.E.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": ["Bismarck Sea", "South Pacific Ocean"]}, "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": -3.0}, "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": 147.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 140.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 148.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.0, -1.75], [144.53, -1.97], [144.75, -2.5], [144.53, -3.03], [144.0, -3.25], [143.47, -3.03], [143.25, -2.5], [143.47, -1.97], [144.0, -1.75]]]]}, "2012-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.75, -4.0], [144.97, -3.47], [145.5, -3.25], [145.75, -3.35], [146.0, -3.25], [146.25, -3.35], [146.32, -3.32], [146.35, -3.25], [146.25, -3.0], [146.47, -2.47], [147.0, -2.25], [147.53, -2.47], [147.68, -2.82], [148.03, -2.97], [148.25, -3.5], [148.03, -4.03], [147.68, -4.18], [147.53, -4.53], [147.0, -4.75], [146.75, -4.65], [146.5, -4.75], [146.25, -4.65], [146.0, -4.75], [145.75, -4.65], [145.5, -4.75], [144.97, -4.53], [144.75, -4.0]]], [[[143.32, -2.32], [143.47, -1.97], [144.0, -1.75], [144.53, -1.97], [144.75, -2.5], [144.65, -2.75], [144.75, -3.0], [144.53, -3.53], [144.18, -3.68], [144.03, -4.03], [143.5, -4.25], [142.97, -4.03], [142.75, -3.5], [142.85, -3.25], [142.75, -3.0], [142.97, -2.47], [143.32, -2.32]]]]}, "2012-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.47, -1.97], [143.0, -1.75], [143.25, -1.85], [143.5, -1.75], [143.75, -1.85], [144.0, -1.75], [144.53, -1.97], [144.75, -2.5], [144.65, -2.75], [144.75, -3.0], [144.53, -3.53], [144.18, -3.68], [144.03, -4.03], [143.5, -4.25], [142.97, -4.03], [142.75, -3.5], [142.85, -3.25], [142.82, -3.18], [142.47, -3.03], [142.25, -2.5], [142.47, -1.97]]], [[[144.75, -4.0], [144.97, -3.47], [145.5, -3.25], [145.75, -3.35], [146.0, -3.25], [146.25, -3.35], [146.32, -3.32], [146.35, -3.25], [146.25, -3.0], [146.46, -2.5], [146.25, -2.0], [146.47, -1.47], [147.0, -1.25], [147.53, -1.47], [147.75, -2.0], [147.54, -2.5], [147.68, -2.82], [148.03, -2.97], [148.25, -3.5], [148.03, -4.03], [147.68, -4.18], [147.53, -4.53], [147.0, -4.75], [146.75, -4.65], [146.5, -4.75], [146.25, -4.65], [146.0, -4.75], [145.75, -4.65], [145.5, -4.75], [144.97, -4.53], [144.75, -4.0]]]]}, "2012-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.47, -0.97], [141.0, -0.75], [141.53, -0.97], [141.68, -1.32], [141.75, -1.35], [142.0, -1.25], [142.53, -1.47], [142.68, -1.82], [142.75, -1.85], [143.0, -1.75], [143.25, -1.85], [143.32, -1.82], [143.35, -1.75], [143.32, -1.68], [142.97, -1.53], [142.75, -1.0], [142.97, -0.47], [143.5, -0.25], [144.03, -0.47], [144.18, -0.82], [144.25, -0.85], [144.5, -0.75], [145.03, -0.97], [145.18, -1.32], [145.25, -1.35], [145.32, -1.32], [145.47, -0.97], [146.0, -0.75], [146.25, -0.85], [146.32, -0.82], [146.47, -0.47], [147.0, -0.25], [147.53, -0.47], [147.75, -1.0], [147.65, -1.25], [147.68, -1.32], [148.03, -1.47], [148.25, -2.0], [148.13, -2.3], [148.53, -2.47], [148.75, -3.0], [148.53, -3.53], [148.18, -3.68], [148.03, -4.03], [147.68, -4.18], [147.53, -4.53], [147.0, -4.75], [146.75, -4.65], [146.5, -4.75], [146.25, -4.65], [146.0, -4.75], [145.75, -4.65], [145.5, -4.75], [144.97, -4.53], [144.75, -4.0], [144.97, -3.47], [145.32, -3.32], [145.35, -3.25], [145.32, -3.18], [145.0, -3.04], [144.68, -3.18], [144.53, -3.53], [144.18, -3.68], [144.03, -4.03], [143.5, -4.25], [142.97, -4.03], [142.82, -3.68], [142.75, -3.65], [142.5, -3.75], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0], [140.35, -1.75], [140.25, -1.5], [140.47, -0.97]]]]}, "2012-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.47, -0.97], [141.0, -0.75], [141.53, -0.97], [141.68, -1.32], [141.75, -1.35], [142.0, -1.25], [142.53, -1.47], [142.68, -1.82], [142.75, -1.85], [143.0, -1.75], [143.25, -1.85], [143.32, -1.82], [143.35, -1.75], [143.32, -1.68], [142.97, -1.53], [142.75, -1.0], [142.97, -0.47], [143.5, -0.25], [144.03, -0.47], [144.18, -0.82], [144.25, -0.85], [144.5, -0.75], [145.03, -0.97], [145.18, -1.32], [145.25, -1.35], [145.32, -1.32], [145.47, -0.97], [146.0, -0.75], [146.25, -0.85], [146.32, -0.82], [146.47, -0.47], [147.0, -0.25], [147.53, -0.47], [147.75, -1.0], [147.65, -1.25], [147.68, -1.32], [148.03, -1.47], [148.25, -2.0], [148.13, -2.3], [148.53, -2.47], [148.75, -3.0], [148.53, -3.53], [148.18, -3.68], [148.03, -4.03], [147.5, -4.25], [147.25, -4.15], [147.0, -4.25], [146.75, -4.15], [146.5, -4.25], [146.25, -4.15], [146.0, -4.25], [145.47, -4.03], [145.25, -3.5], [145.35, -3.25], [145.32, -3.18], [145.0, -3.04], [144.5, -3.25], [144.07, -3.07], [144.25, -3.5], [144.03, -4.03], [143.5, -4.25], [142.97, -4.03], [142.82, -3.68], [142.75, -3.65], [142.5, -3.75], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0], [140.35, -1.75], [140.25, -1.5], [140.47, -0.97]]]]}, "2012-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.47, -0.97], [141.0, -0.75], [141.53, -0.97], [141.68, -1.32], [141.75, -1.35], [142.0, -1.25], [142.53, -1.47], [142.68, -1.82], [142.75, -1.85], [143.0, -1.75], [143.25, -1.85], [143.32, -1.82], [143.35, -1.75], [143.32, -1.68], [142.97, -1.53], [142.75, -1.0], [142.97, -0.47], [143.5, -0.25], [144.03, -0.47], [144.18, -0.82], [144.25, -0.85], [144.5, -0.75], [145.03, -0.97], [145.18, -1.32], [145.25, -1.35], [145.32, -1.32], [145.47, -0.97], [146.0, -0.75], [146.25, -0.85], [146.32, -0.82], [146.47, -0.47], [147.0, -0.25], [147.53, -0.47], [147.75, -1.0], [147.65, -1.25], [147.68, -1.32], [148.03, -1.47], [148.25, -2.0], [148.13, -2.3], [148.53, -2.47], [148.75, -3.0], [148.53, -3.53], [148.0, -3.75], [147.75, -3.65], [147.68, -3.68], [147.53, -4.03], [147.0, -4.25], [146.75, -4.15], [146.5, -4.25], [146.25, -4.15], [146.0, -4.25], [145.47, -4.03], [145.25, -3.5], [145.35, -3.25], [145.32, -3.18], [145.0, -3.04], [144.5, -3.25], [144.0, -3.04], [143.68, -3.18], [143.53, -3.53], [143.0, -3.75], [142.75, -3.65], [142.5, -3.75], [142.25, -3.65], [142.0, -3.75], [141.47, -3.53], [141.32, -3.18], [140.97, -3.03], [140.82, -2.68], [140.47, -2.53], [140.25, -2.0], [140.35, -1.75], [140.25, -1.5], [140.47, -0.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.5194183503061822}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1232310246202752}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.92436528042714, 25.699305533904862, 25.685944781595538, 25.667149943456877, 25.612760825323278, 25.68547656297079]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.92436528042714, 24.713940165273016, 24.625848578670514, 24.432731132662013, 24.295171448658664, 24.78960216247799]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9317610088726269, -1.0746389126028257, -1.0350866281062079, -1.1339545082732034, -1.165156700390875, -1.1160290477045218]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9317610088726269, -1.2430994531619035, -1.2894004626073183, -1.32258445031772, -1.436322106228772, -1.5194183503061822]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3320509544640426, -1.605568082589764, -1.554891218679524, -1.6309749336589654, -1.6322499238357417, -1.5762021184226536]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3320509544640426, -1.9439912240480504, -2.0196411962716487, -2.026980799309968, -2.0124455922339464, -2.09347078234696]}}