{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:05.584678", "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-Aug-02_to_2011-Aug-05_166.0_-20.0"}, "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": 2011080000227}, "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 02 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 81279.01996430557}, "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": ["New Caledonia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": ["Coral 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": -20.0}, "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": 166.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "166.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 162.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 167.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[162.97, -19.47], [163.5, -19.25], [163.75, -19.35], [164.0, -19.25], [164.3, -19.37], [164.35, -19.25], [164.25, -19.0], [164.47, -18.47], [165.0, -18.25], [165.25, -18.35], [165.5, -18.25], [165.75, -18.35], [166.0, -18.25], [166.25, -18.35], [166.5, -18.25], [167.03, -18.47], [167.25, -19.0], [167.15, -19.25], [167.18, -19.32], [167.53, -19.47], [167.75, -20.0], [167.65, -20.25], [167.75, -20.5], [167.53, -21.03], [167.18, -21.18], [167.03, -21.53], [166.5, -21.75], [165.97, -21.53], [165.82, -21.18], [165.75, -21.15], [165.5, -21.25], [165.25, -21.15], [165.18, -21.18], [165.03, -21.53], [164.5, -21.75], [163.97, -21.53], [163.82, -21.18], [163.75, -21.15], [163.5, -21.25], [162.97, -21.03], [162.75, -20.5], [162.85, -20.25], [162.75, -20.0], [162.97, -19.47]]]]}, "2011-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[162.25, -20.0], [162.47, -19.47], [163.0, -19.25], [163.25, -19.35], [163.5, -19.25], [163.75, -19.35], [164.0, -19.25], [164.3, -19.37], [164.35, -19.25], [164.25, -19.0], [164.47, -18.47], [165.0, -18.25], [165.25, -18.35], [165.5, -18.25], [165.75, -18.35], [166.0, -18.25], [166.25, -18.35], [166.5, -18.25], [167.03, -18.47], [167.25, -19.0], [167.15, -19.25], [167.18, -19.32], [167.53, -19.47], [167.75, -20.0], [167.65, -20.25], [167.75, -20.5], [167.53, -21.03], [167.18, -21.18], [167.15, -21.25], [167.25, -21.5], [167.03, -22.03], [166.5, -22.25], [165.97, -22.03], [165.82, -21.68], [165.47, -21.53], [165.32, -21.18], [165.25, -21.15], [165.18, -21.18], [165.03, -21.53], [164.5, -21.75], [163.97, -21.53], [163.82, -21.18], [163.75, -21.15], [163.5, -21.25], [162.97, -21.03], [162.82, -20.68], [162.47, -20.53], [162.25, -20.0]]]]}, "2011-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[162.25, -20.0], [162.47, -19.47], [163.0, -19.25], [163.25, -19.35], [163.5, -19.25], [163.75, -19.35], [164.0, -19.25], [164.3, -19.37], [164.35, -19.25], [164.25, -19.0], [164.47, -18.47], [165.0, -18.25], [165.25, -18.35], [165.5, -18.25], [165.75, -18.35], [166.0, -18.25], [166.25, -18.35], [166.5, -18.25], [167.03, -18.47], [167.25, -19.0], [167.15, -19.25], [167.18, -19.32], [167.53, -19.47], [167.75, -20.0], [167.65, -20.25], [167.75, -20.5], [167.53, -21.03], [167.18, -21.18], [167.15, -21.25], [167.25, -21.5], [167.03, -22.03], [166.5, -22.25], [165.97, -22.03], [165.82, -21.68], [165.47, -21.53], [165.32, -21.18], [165.25, -21.15], [165.18, -21.18], [165.03, -21.53], [164.5, -21.75], [163.97, -21.53], [163.82, -21.18], [163.75, -21.15], [163.5, -21.25], [162.97, -21.03], [162.82, -20.68], [162.47, -20.53], [162.25, -20.0]]]]}, "2011-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[162.25, -20.0], [162.47, -19.47], [163.0, -19.25], [163.25, -19.35], [163.5, -19.25], [164.03, -19.47], [164.18, -19.82], [164.53, -19.97], [164.68, -20.32], [164.8, -20.37], [164.85, -20.25], [164.75, -20.0], [164.97, -19.47], [165.5, -19.25], [165.75, -19.35], [166.0, -19.25], [166.53, -19.47], [166.68, -19.82], [167.03, -19.97], [167.25, -20.5], [167.15, -20.75], [167.25, -21.0], [167.15, -21.25], [167.25, -21.5], [167.03, -22.03], [166.5, -22.25], [165.97, -22.03], [165.82, -21.68], [165.47, -21.53], [165.32, -21.18], [165.2, -21.12], [165.03, -21.53], [164.5, -21.75], [163.97, -21.53], [163.82, -21.18], [163.75, -21.15], [163.5, -21.25], [162.97, -21.03], [162.82, -20.68], [162.47, -20.53], [162.25, -20.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8782350342441987}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.320046085477968}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.008955415325772, 20.54469697122221, 20.59076493899147, 20.578994565821176]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.810936720059203, 18.368631353758587, 18.732887565008866, 19.738192867275814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1142133358574506, -1.4901696369206914, -1.4053595757890938, -1.165706206355288]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4277133937854956, -1.8782350342441987, -1.628908600939667, -1.2840582873897688]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3036711407380053, -1.71396965278198, -1.5739492101492323, -1.2738983626403528]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4297921021226736, -1.943437464474922, -1.8749225319353626, -1.3660910010176242]}}