{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:58.391395", "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": "2015-May-14_to_2015-May-17_136.0_-15.0"}, "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": 2015050000529}, "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": "May 14 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2015"}, "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": 113108.78113403615}, "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": ["Arafura 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": -15.0}, "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": 136.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "136.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 135.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, -13.97], [135.32, -13.82], [135.47, -13.47], [136.0, -13.25], [136.5, -13.46], [137.0, -13.25], [137.53, -13.47], [137.68, -13.82], [137.75, -13.85], [138.0, -13.75], [138.53, -13.97], [138.7, -14.37], [139.0, -14.25], [139.53, -14.47], [139.75, -15.0], [139.65, -15.25], [139.68, -15.32], [139.75, -15.35], [140.0, -15.25], [140.53, -15.47], [140.75, -16.0], [140.65, -16.25], [140.68, -16.32], [141.03, -16.47], [141.25, -17.0], [141.15, -17.25], [141.25, -17.5], [141.03, -18.03], [140.5, -18.25], [140.25, -18.15], [140.0, -18.25], [139.47, -18.03], [139.32, -17.68], [138.97, -17.53], [138.82, -17.18], [138.75, -17.15], [138.5, -17.25], [138.25, -17.15], [138.0, -17.25], [137.47, -17.03], [137.32, -16.68], [137.25, -16.65], [137.0, -16.75], [136.47, -16.53], [136.32, -16.18], [135.97, -16.03], [135.82, -15.68], [135.75, -15.65], [135.5, -15.75], [134.97, -15.53], [134.75, -15.0], [134.85, -14.75], [134.75, -14.5], [134.97, -13.97]]]]}, "2015-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, -13.97], [135.32, -13.82], [135.47, -13.47], [136.0, -13.25], [136.5, -13.46], [137.0, -13.25], [137.53, -13.47], [137.68, -13.82], [137.75, -13.85], [138.0, -13.75], [138.53, -13.97], [138.7, -14.37], [139.0, -14.25], [139.53, -14.47], [139.75, -15.0], [139.65, -15.25], [139.68, -15.32], [139.75, -15.35], [140.0, -15.25], [140.53, -15.47], [140.75, -16.0], [140.65, -16.25], [140.68, -16.32], [141.03, -16.47], [141.25, -17.0], [141.15, -17.25], [141.25, -17.5], [141.03, -18.03], [140.5, -18.25], [140.25, -18.15], [140.0, -18.25], [139.47, -18.03], [139.32, -17.68], [138.97, -17.53], [138.82, -17.18], [138.75, -17.15], [138.5, -17.25], [138.25, -17.15], [138.0, -17.25], [137.47, -17.03], [137.32, -16.68], [137.25, -16.65], [137.0, -16.75], [136.47, -16.53], [136.32, -16.18], [135.97, -16.03], [135.82, -15.68], [135.75, -15.65], [135.5, -15.75], [134.97, -15.53], [134.75, -15.0], [134.85, -14.75], [134.75, -14.5], [134.97, -13.97]]]]}, "2015-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, -13.97], [135.32, -13.82], [135.47, -13.47], [136.0, -13.25], [136.5, -13.46], [137.0, -13.25], [137.53, -13.47], [137.68, -13.82], [137.75, -13.85], [138.0, -13.75], [138.53, -13.97], [138.7, -14.37], [139.0, -14.25], [139.53, -14.47], [139.75, -15.0], [139.65, -15.25], [139.68, -15.32], [139.75, -15.35], [140.0, -15.25], [140.53, -15.47], [140.75, -16.0], [140.65, -16.25], [140.68, -16.32], [141.03, -16.47], [141.25, -17.0], [141.15, -17.25], [141.25, -17.5], [141.03, -18.03], [140.5, -18.25], [140.25, -18.15], [140.0, -18.25], [139.47, -18.03], [139.32, -17.68], [138.97, -17.53], [138.82, -17.18], [138.75, -17.15], [138.5, -17.25], [138.25, -17.15], [138.0, -17.25], [137.47, -17.03], [137.32, -16.68], [137.25, -16.65], [137.0, -16.75], [136.47, -16.53], [136.32, -16.18], [135.97, -16.03], [135.82, -15.68], [135.75, -15.65], [135.5, -15.75], [134.97, -15.53], [134.75, -15.0], [134.85, -14.75], [134.75, -14.5], [134.97, -13.97]]]]}, "2015-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, -15.0], [135.47, -14.47], [136.0, -14.25], [136.53, -14.47], [136.68, -14.82], [137.03, -14.97], [137.25, -15.5], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.82, -15.68], [135.47, -15.53], [135.25, -15.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.685934167061646}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.4729296324729075}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.161490199054356, 23.11272061350064, 24.020576000956453, 24.025631410427536]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.140098998111682, 20.47147910710919, 21.990453301678997, 23.85694071009044]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.79026993741384, -2.8115720871577126, -1.865959762677435, -1.541684725697877]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.4601533769359776, -4.685934167061646, -2.699615814922879, -1.5536047165397235]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.568692358097952, -2.5816761278101485, -1.6730806862067922, -1.330514839859091]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.9572090092800862, -3.0193160977503943, -2.323680990753656, -1.3378377047329928]}}