{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:15.599204", "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": "2013-Jan-17_to_2013-Jan-20_125.0_-16.0"}, "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": 2013010000568}, "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 17 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 20 2013"}, "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": 56252.78967001938}, "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": ["Australia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": ["Indian 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": -16.0}, "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": 125.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, -16.5], [123.47, -15.97], [124.0, -15.75], [124.25, -15.85], [124.32, -15.82], [124.35, -15.75], [124.25, -15.5], [124.47, -14.97], [125.0, -14.75], [125.25, -14.85], [125.5, -14.75], [126.03, -14.97], [126.25, -15.5], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.2, -16.37], [126.5, -16.25], [127.03, -16.47], [127.25, -17.0], [127.15, -17.25], [127.25, -17.5], [127.15, -17.75], [127.25, -18.0], [127.03, -18.53], [126.5, -18.75], [126.25, -18.65], [126.0, -18.75], [125.47, -18.53], [125.32, -18.18], [124.97, -18.03], [124.82, -17.68], [124.75, -17.65], [124.5, -17.75], [123.97, -17.53], [123.82, -17.18], [123.47, -17.03], [123.25, -16.5]]]]}, "2013-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, -16.5], [123.47, -15.97], [123.82, -15.82], [123.85, -15.75], [123.75, -15.5], [123.97, -14.97], [124.5, -14.75], [124.75, -14.85], [125.0, -14.75], [125.25, -14.85], [125.5, -14.75], [126.03, -14.97], [126.25, -15.5], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.2, -16.37], [126.5, -16.25], [127.03, -16.47], [127.25, -17.0], [127.15, -17.25], [127.25, -17.5], [127.15, -17.75], [127.25, -18.0], [127.03, -18.53], [126.5, -18.75], [126.25, -18.65], [126.0, -18.75], [125.47, -18.53], [125.32, -18.18], [124.97, -18.03], [124.82, -17.68], [124.75, -17.65], [124.5, -17.75], [123.97, -17.53], [123.82, -17.18], [123.47, -17.03], [123.25, -16.5]]]]}, "2013-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, -16.5], [123.47, -15.97], [123.82, -15.82], [123.85, -15.75], [123.75, -15.5], [123.97, -14.97], [124.5, -14.75], [124.75, -14.85], [125.0, -14.75], [125.25, -14.85], [125.5, -14.75], [126.03, -14.97], [126.25, -15.5], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.2, -16.37], [126.5, -16.25], [127.03, -16.47], [127.25, -17.0], [127.15, -17.25], [127.25, -17.5], [127.15, -17.75], [127.25, -18.0], [127.03, -18.53], [126.5, -18.75], [126.25, -18.65], [126.0, -18.75], [125.47, -18.53], [125.32, -18.18], [124.97, -18.03], [124.82, -17.68], [124.75, -17.65], [124.5, -17.75], [123.97, -17.53], [123.82, -17.18], [123.47, -17.03], [123.25, -16.5]]]]}, "2013-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, -16.5], [123.47, -15.97], [123.82, -15.82], [123.85, -15.75], [123.75, -15.5], [123.97, -14.97], [124.5, -14.75], [124.75, -14.85], [125.0, -14.75], [125.25, -14.85], [125.5, -14.75], [126.03, -14.97], [126.25, -15.5], [126.15, -15.75], [126.25, -16.0], [126.03, -16.53], [125.68, -16.68], [125.65, -16.75], [125.75, -17.0], [125.53, -17.53], [125.0, -17.75], [124.75, -17.65], [124.5, -17.75], [123.97, -17.53], [123.82, -17.18], [123.47, -17.03], [123.25, -16.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.864840816797198}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.6180067058223218}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.04347769748523, 26.000834451939397, 25.78527431122899, 25.531882762307873]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.468863643894508, 24.51593506136618, 24.278621555700454, 24.271462456515053]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.350469500503062, -2.321042558023512, -2.449760822465473, -2.2895633496754972]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.864840816797198, -3.327977179479376, -3.6445346384800814, -2.832854522002094]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8770578841425722, -1.5037099238613347, -1.6516669711396033, -1.8728161253282416]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.343951792092916, -2.062540334513153, -2.2969607213161916, -2.202391972596024]}}