{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:16.872072", "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": "2019-Aug-07_to_2019-Aug-17_284.0_-14.0"}, "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": 2019080000249}, "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 07 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 17 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 11}, "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": 59958.18893757774}, "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": ["Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America", "S.W.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": ["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": -14.0}, "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": 284.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "284.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 282.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.0, -13.75], [-75.47, -13.97], [-75.25, -14.5], [-75.47, -15.03], [-76.0, -15.25], [-76.53, -15.03], [-76.75, -14.5], [-76.53, -13.97], [-76.0, -13.75]]]]}, "2019-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.75, -14.5], [-76.53, -13.97], [-76.0, -13.75], [-75.75, -13.85], [-75.5, -13.75], [-74.97, -13.97], [-74.75, -14.5], [-74.85, -14.75], [-74.75, -15.0], [-74.97, -15.53], [-75.5, -15.75], [-76.03, -15.53], [-76.18, -15.18], [-76.53, -15.03], [-76.75, -14.5]]]]}, "2019-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.53, -13.47], [-76.0, -13.25], [-75.47, -13.47], [-75.32, -13.82], [-74.97, -13.97], [-74.75, -14.5], [-74.85, -14.75], [-74.82, -14.82], [-74.47, -14.97], [-74.25, -15.5], [-74.47, -16.03], [-75.0, -16.25], [-75.53, -16.03], [-75.68, -15.68], [-76.03, -15.53], [-76.18, -15.18], [-76.53, -15.03], [-76.75, -14.5], [-76.65, -14.25], [-76.75, -14.0], [-76.53, -13.47]]]]}, "2019-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.62, -13.7], [-77.03, -13.53], [-77.25, -13.0], [-77.03, -12.47], [-76.5, -12.25], [-75.97, -12.47], [-75.75, -13.0], [-75.87, -13.3], [-75.47, -13.47], [-75.32, -13.82], [-74.97, -13.97], [-74.75, -14.5], [-74.85, -14.75], [-74.82, -14.82], [-74.47, -14.97], [-74.25, -15.5], [-74.47, -16.03], [-75.0, -16.25], [-75.53, -16.03], [-75.68, -15.68], [-76.03, -15.53], [-76.18, -15.18], [-76.53, -15.03], [-76.75, -14.5], [-76.65, -14.25], [-76.75, -14.0], [-76.62, -13.7]]]]}, "2019-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.62, -13.7], [-77.03, -13.53], [-77.25, -13.0], [-77.03, -12.47], [-76.5, -12.25], [-75.97, -12.47], [-75.75, -13.0], [-75.87, -13.3], [-75.47, -13.47], [-75.32, -13.82], [-74.97, -13.97], [-74.75, -14.5], [-74.85, -14.75], [-74.82, -14.82], [-74.47, -14.97], [-74.25, -15.5], [-74.47, -16.03], [-75.0, -16.25], [-75.53, -16.03], [-75.68, -15.68], [-76.03, -15.53], [-76.18, -15.18], [-76.53, -15.03], [-76.75, -14.5], [-76.65, -14.25], [-76.75, -14.0], [-76.62, -13.7]]]]}, "2019-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.53, -15.03], [-76.75, -14.5], [-76.53, -13.97], [-76.0, -13.75], [-75.47, -13.97], [-75.25, -14.5], [-75.47, -15.03], [-76.0, -15.25], [-76.53, -15.03]]], [[[-77.03, -13.53], [-77.25, -13.0], [-77.03, -12.47], [-76.5, -12.25], [-75.97, -12.47], [-75.75, -13.0], [-75.97, -13.53], [-76.5, -13.75], [-77.03, -13.53]]]]}, "2019-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.25, -14.0], [-78.03, -13.47], [-77.68, -13.32], [-77.65, -13.25], [-77.75, -13.0], [-77.65, -12.75], [-77.75, -12.5], [-77.53, -11.97], [-77.0, -11.75], [-76.47, -11.97], [-76.32, -12.32], [-75.97, -12.47], [-75.75, -13.0], [-75.85, -13.25], [-75.82, -13.32], [-75.47, -13.47], [-75.25, -14.0], [-75.46, -14.5], [-75.25, -15.0], [-75.47, -15.53], [-76.0, -15.75], [-76.25, -15.65], [-76.5, -15.75], [-77.03, -15.53], [-77.18, -15.18], [-77.53, -15.03], [-77.68, -14.68], [-78.03, -14.53], [-78.25, -14.0]]]]}, "2019-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.03, -13.47], [-77.68, -13.32], [-77.65, -13.25], [-77.75, -13.0], [-77.65, -12.75], [-77.68, -12.68], [-78.03, -12.53], [-78.25, -12.0], [-78.03, -11.47], [-77.5, -11.25], [-76.97, -11.47], [-76.82, -11.82], [-76.47, -11.97], [-76.32, -12.32], [-75.97, -12.47], [-75.75, -13.0], [-75.85, -13.25], [-75.82, -13.32], [-75.47, -13.47], [-75.25, -14.0], [-75.46, -14.5], [-75.25, -15.0], [-75.47, -15.53], [-76.0, -15.75], [-76.25, -15.65], [-76.5, -15.75], [-76.75, -15.65], [-77.0, -15.75], [-77.53, -15.53], [-77.68, -15.18], [-78.03, -15.03], [-78.25, -14.5], [-78.15, -14.25], [-78.25, -14.0], [-78.03, -13.47]]]]}, "2019-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.03, -13.47], [-77.68, -13.32], [-77.65, -13.25], [-77.75, -13.0], [-77.65, -12.75], [-77.68, -12.68], [-78.03, -12.53], [-78.25, -12.0], [-78.03, -11.47], [-77.5, -11.25], [-76.97, -11.47], [-76.82, -11.82], [-76.47, -11.97], [-76.32, -12.32], [-75.97, -12.47], [-75.75, -13.0], [-75.85, -13.25], [-75.82, -13.32], [-75.47, -13.47], [-75.25, -14.0], [-75.46, -14.5], [-75.25, -15.0], [-75.47, -15.53], [-76.0, -15.75], [-76.25, -15.65], [-76.5, -15.75], [-76.75, -15.65], [-77.0, -15.75], [-77.53, -15.53], [-77.68, -15.18], [-78.03, -15.03], [-78.25, -14.5], [-78.15, -14.25], [-78.25, -14.0], [-78.03, -13.47]]]]}, "2019-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.03, -13.47], [-77.68, -13.32], [-77.65, -13.25], [-77.75, -13.0], [-77.62, -12.7], [-78.03, -12.53], [-78.25, -12.0], [-78.03, -11.47], [-77.5, -11.25], [-76.97, -11.47], [-76.75, -12.0], [-76.87, -12.3], [-76.75, -12.35], [-76.5, -12.25], [-75.97, -12.47], [-75.75, -13.0], [-75.85, -13.25], [-75.82, -13.32], [-75.47, -13.47], [-75.25, -14.0], [-75.47, -14.53], [-76.0, -14.75], [-76.25, -14.65], [-76.37, -14.7], [-76.25, -15.0], [-76.47, -15.53], [-77.0, -15.75], [-77.53, -15.53], [-77.68, -15.18], [-78.03, -15.03], [-78.25, -14.5], [-78.15, -14.25], [-78.25, -14.0], [-78.03, -13.47]]]]}, "2019-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.0, -13.25], [-75.47, -13.47], [-75.25, -14.0], [-75.47, -14.53], [-76.0, -14.75], [-76.53, -14.53], [-76.75, -14.0], [-76.53, -13.47], [-76.0, -13.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.4266117709738637}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.3115511602746648}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.749903276803366, 14.20780656631888, 14.226415383495805, 14.521570514564132, 14.421209288770513, 14.239320157516715, 14.375915297281324, 14.377306449318212, 14.496017690039082, 14.896565619954742, 16.291112707377692]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.749903276803366, 13.545522255261801, 13.278197200641841, 13.223983845863529, 13.220657873177743, 13.722048255559969, 13.687624438261992, 13.443830640393912, 13.835214476193698, 14.527266242788528, 16.291112707377692]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0095664628905183, -1.3308159487285138, -1.4240888262398017, -1.1492917806864018, -1.258935697155967, -0.9850928823346692, -1.4285197336703628, -1.4508793579758965, -1.333053160281633, -1.0792402099766207, -1.164453660098502]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0095664628905183, -1.787468581864232, -2.4266117709738637, -1.529597713094688, -1.738766163683124, -1.0604929877428617, -1.8437095218248487, -1.901714473504569, -1.9352817116317738, -1.238017386993306, -1.164453660098502]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.0570052829519703, -1.2125377002703477, -1.2987537870086574, -1.0479398376154652, -1.1553415031142844, -0.9419683608000602, -1.3437623768088662, -1.3983026643387588, -1.3020870235272621, -1.0656399217446757, -1.297343718775011]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.0570052829519703, -1.2982816327747009, -1.734580015489625, -1.2574202746247398, -1.5342063483906685, -1.0570221278021408, -1.826365485011004, -1.9526033845549546, -2.068945677711707, -1.3464097222034215, -1.297343718775011]}}