{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:34.308916", "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": "2011-Jan-25_to_2011-Jan-29_128.5_-4.0"}, "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": 2011010001259}, "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": "January 25 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 2011"}, "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": 77126.00643457794}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["Banda Sea", "Ceram 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": -4.0}, "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": 128.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -3.47], [128.32, -3.32], [128.47, -2.97], [129.0, -2.75], [129.25, -2.85], [129.5, -2.75], [130.03, -2.97], [130.25, -3.5], [130.15, -3.75], [130.25, -4.0], [130.15, -4.25], [130.25, -4.5], [130.03, -5.03], [129.5, -5.25], [129.25, -5.15], [129.0, -5.25], [128.47, -5.03], [128.32, -4.68], [127.97, -4.53], [127.75, -4.0], [127.97, -3.47]]], [[[129.97, -2.53], [129.75, -2.0], [129.97, -1.47], [130.5, -1.25], [131.03, -1.47], [131.25, -2.0], [131.03, -2.53], [130.5, -2.75], [129.97, -2.53]]]]}, "2011-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -2.97], [128.5, -2.75], [128.75, -2.85], [129.0, -2.75], [129.25, -2.85], [129.5, -2.75], [129.75, -2.85], [130.0, -2.75], [130.5, -2.96], [130.82, -2.82], [130.85, -2.75], [130.82, -2.68], [130.75, -2.65], [130.5, -2.75], [129.97, -2.53], [129.75, -2.0], [129.85, -1.75], [129.75, -1.5], [129.97, -0.97], [130.5, -0.75], [130.75, -0.85], [131.0, -0.75], [131.25, -0.85], [131.5, -0.75], [132.03, -0.97], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.18, -2.68], [132.15, -2.75], [132.25, -3.0], [132.03, -3.53], [131.68, -3.68], [131.53, -4.03], [131.0, -4.25], [130.57, -4.07], [130.75, -4.5], [130.53, -5.03], [130.0, -5.25], [129.75, -5.15], [129.5, -5.25], [129.25, -5.15], [129.0, -5.25], [128.47, -5.03], [128.32, -4.68], [127.97, -4.53], [127.75, -4.0], [127.85, -3.75], [127.75, -3.5], [127.97, -2.97]]]]}, "2011-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.85, -4.25], [127.75, -4.0], [127.85, -3.75], [127.75, -3.5], [127.97, -2.97], [128.5, -2.75], [128.75, -2.85], [129.0, -2.75], [129.25, -2.85], [129.5, -2.75], [129.75, -2.85], [130.0, -2.75], [130.25, -2.85], [130.5, -2.75], [129.97, -2.53], [129.75, -2.0], [129.85, -1.75], [129.75, -1.5], [129.97, -0.97], [130.5, -0.75], [130.75, -0.85], [131.0, -0.75], [131.25, -0.85], [131.5, -0.75], [132.03, -0.97], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.18, -2.68], [132.15, -2.75], [132.25, -3.0], [132.03, -3.53], [131.68, -3.68], [131.53, -4.03], [131.0, -4.25], [130.75, -4.15], [130.63, -4.2], [130.75, -4.5], [130.53, -5.03], [130.0, -5.25], [129.75, -5.15], [129.68, -5.18], [129.65, -5.25], [129.75, -5.5], [129.53, -6.03], [129.0, -6.25], [128.47, -6.03], [128.32, -5.68], [127.97, -5.53], [127.75, -5.0], [127.85, -4.75], [127.75, -4.5], [127.85, -4.25]], [[130.75, -2.85], [130.82, -2.82], [130.85, -2.75], [130.82, -2.68], [130.75, -2.65], [130.5, -2.75], [130.75, -2.85]]]]}, "2011-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.85, -4.25], [127.75, -4.0], [127.85, -3.75], [127.75, -3.5], [127.97, -2.97], [128.5, -2.75], [128.75, -2.85], [129.0, -2.75], [129.5, -2.96], [130.0, -2.75], [130.25, -2.85], [130.5, -2.75], [129.97, -2.53], [129.75, -2.0], [129.85, -1.75], [129.75, -1.5], [129.97, -0.97], [130.5, -0.75], [130.75, -0.85], [131.0, -0.75], [131.25, -0.85], [131.5, -0.75], [132.03, -0.97], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.53, -2.53], [132.18, -2.68], [132.15, -2.75], [132.25, -3.0], [132.03, -3.53], [131.68, -3.68], [131.53, -4.03], [131.0, -4.25], [130.75, -4.15], [130.63, -4.2], [130.75, -4.5], [130.53, -5.03], [130.0, -5.25], [129.75, -5.15], [129.68, -5.18], [129.65, -5.25], [129.75, -5.5], [129.53, -6.03], [129.0, -6.25], [128.47, -6.03], [128.32, -5.68], [127.97, -5.53], [127.75, -5.0], [127.85, -4.75], [127.75, -4.5], [127.85, -4.25]], [[130.75, -2.85], [130.82, -2.82], [130.85, -2.75], [130.82, -2.68], [130.75, -2.65], [130.5, -2.75], [130.75, -2.85]]]]}, "2011-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.75, -4.0], [127.85, -3.75], [127.75, -3.5], [127.97, -2.97], [128.5, -2.75], [129.03, -2.97], [129.25, -3.5], [129.15, -3.75], [129.18, -3.82], [129.53, -3.97], [129.75, -4.5], [129.65, -4.75], [129.75, -5.0], [129.65, -5.25], [129.75, -5.5], [129.53, -6.03], [129.0, -6.25], [128.47, -6.03], [128.32, -5.68], [127.97, -5.53], [127.75, -5.0], [127.85, -4.75], [127.75, -4.5], [127.85, -4.25], [127.75, -4.0]]], [[[129.97, -4.03], [129.75, -3.5], [129.97, -2.97], [130.5, -2.75], [131.03, -2.97], [131.25, -3.5], [131.03, -4.03], [130.5, -4.25], [129.97, -4.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.5144036865041244}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0149007673698909}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.46900480454275, 26.210955538917233, 26.045927324104014, 26.27015000117376, 26.130992709888005]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.429212709353806, 25.266605251882083, 24.400203895077027, 23.862212499411612, 23.860648966166707]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8975781308880144, -0.9865713332372337, -1.1426159643661504, -0.9548731935341905, -0.9840197200771996]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.133899495941705, -1.3347428474683625, -1.5144036865041244, -1.4887756380255155, -1.4900406623197568]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4592289096062987, -1.6094127457682987, -1.840332420928396, -1.5455811134920399, -1.4471458414151022]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7660535147350178, -2.1298721873617406, -2.3441718880930593, -1.963493961346596, -1.9571135039968242]}}