{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:55.900805", "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": "2018-Jun-20_to_2018-Jun-26_148.5_-36.0"}, "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": 2018060000814}, "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": "June 20 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 26 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 50451.55603623332}, "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": ["E.Australia", "S.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": []}, "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": -36.0}, "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": 148.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.5, -35.25], [149.03, -35.47], [149.25, -36.0], [149.03, -36.53], [148.5, -36.75], [147.97, -36.53], [147.75, -36.0], [147.97, -35.47], [148.5, -35.25]]]]}, "2018-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.25, -35.5], [147.47, -34.97], [148.0, -34.75], [148.25, -34.85], [148.5, -34.75], [148.75, -34.85], [149.0, -34.75], [149.5, -34.96], [150.0, -34.75], [150.53, -34.97], [150.75, -35.5], [150.53, -36.03], [150.0, -36.25], [149.5, -36.04], [149.18, -36.18], [149.03, -36.53], [148.5, -36.75], [147.97, -36.53], [147.82, -36.18], [147.47, -36.03], [147.25, -35.5]]]]}, "2018-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.47, -34.97], [148.0, -34.75], [148.25, -34.85], [148.32, -34.82], [148.47, -34.47], [149.0, -34.25], [149.25, -34.35], [149.5, -34.25], [150.03, -34.47], [150.18, -34.82], [150.53, -34.97], [150.75, -35.5], [150.53, -36.03], [150.0, -36.25], [149.75, -36.15], [149.5, -36.25], [149.25, -36.15], [149.18, -36.18], [149.03, -36.53], [148.5, -36.75], [148.25, -36.65], [148.0, -36.75], [147.47, -36.53], [147.25, -36.0], [147.35, -35.75], [147.25, -35.5], [147.47, -34.97]]]]}, "2018-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.35, -35.25], [147.25, -35.0], [147.47, -34.47], [147.82, -34.32], [147.85, -34.25], [147.75, -34.0], [147.97, -33.47], [148.5, -33.25], [149.03, -33.47], [149.18, -33.82], [149.25, -33.85], [149.5, -33.75], [150.03, -33.97], [150.18, -34.32], [150.25, -34.35], [150.5, -34.25], [151.03, -34.47], [151.25, -35.0], [151.03, -35.53], [150.68, -35.68], [150.53, -36.03], [150.0, -36.25], [149.75, -36.15], [149.5, -36.25], [149.25, -36.15], [149.18, -36.18], [149.03, -36.53], [148.5, -36.75], [148.25, -36.65], [148.0, -36.75], [147.47, -36.53], [147.25, -36.0], [147.35, -35.75], [147.25, -35.5], [147.35, -35.25]]]]}, "2018-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.32, -35.32], [147.35, -35.25], [147.25, -35.0], [147.47, -34.47], [147.82, -34.32], [147.85, -34.25], [147.75, -34.0], [147.97, -33.47], [148.5, -33.25], [149.03, -33.47], [149.18, -33.82], [149.25, -33.85], [149.5, -33.75], [150.03, -33.97], [150.18, -34.32], [150.25, -34.35], [150.5, -34.25], [151.03, -34.47], [151.25, -35.0], [151.03, -35.53], [150.68, -35.68], [150.53, -36.03], [150.0, -36.25], [149.75, -36.15], [149.5, -36.25], [149.25, -36.15], [149.18, -36.18], [149.03, -36.53], [148.5, -36.75], [148.25, -36.65], [148.18, -36.68], [148.03, -37.03], [147.5, -37.25], [147.25, -37.15], [147.0, -37.25], [146.47, -37.03], [146.25, -36.5], [146.47, -35.97], [146.82, -35.82], [146.97, -35.47], [147.32, -35.32]]]]}, "2018-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.32, -35.32], [147.35, -35.25], [147.25, -35.0], [147.47, -34.47], [147.82, -34.32], [147.85, -34.25], [147.75, -34.0], [147.97, -33.47], [148.5, -33.25], [149.03, -33.47], [149.18, -33.82], [149.25, -33.85], [149.5, -33.75], [150.03, -33.97], [150.18, -34.32], [150.25, -34.35], [150.5, -34.25], [151.03, -34.47], [151.25, -35.0], [151.03, -35.53], [150.68, -35.68], [150.53, -36.03], [150.0, -36.25], [149.75, -36.15], [149.5, -36.25], [149.25, -36.15], [149.18, -36.18], [149.03, -36.53], [148.5, -36.75], [148.25, -36.65], [148.18, -36.68], [148.03, -37.03], [147.5, -37.25], [147.25, -37.15], [147.0, -37.25], [146.47, -37.03], [146.25, -36.5], [146.47, -35.97], [146.82, -35.82], [146.97, -35.47], [147.32, -35.32]]]]}, "2018-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.38, -35.3], [147.25, -35.0], [147.47, -34.47], [148.0, -34.25], [148.53, -34.47], [148.75, -35.0], [148.54, -35.5], [148.75, -36.0], [148.53, -36.53], [148.18, -36.68], [148.03, -37.03], [147.5, -37.25], [147.25, -37.15], [147.0, -37.25], [146.47, -37.03], [146.25, -36.5], [146.47, -35.97], [146.82, -35.82], [146.97, -35.47], [147.38, -35.3]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.663236988333722}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.846162233057964}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.060864017425160455, 1.5662614756503217, 1.6932805823137755, 2.603604656394907, 1.9391861327911215, 2.1976044995080883, 2.096671342943182]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.060864017425160455, -1.273472091930273, -0.7303864880585706, -1.1448718567260698, -1.3656155626374016, -0.6260640542666351, 1.4367478182147693]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.415817616284471, -3.336531485919886, -3.7164610457673524, -3.752394419426697, -4.184345412747234, -3.890793109775919, -3.6628783813912493]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.415817616284471, -3.5571115661963404, -4.987801339236171, -5.255335698440774, -5.610273982569936, -5.663236988333722, -4.244181239432066]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3502123577103549, -1.7273368875331852, -1.756493622165626, -1.6869211951602991, -1.938940852890339, -1.7972450503117687, -1.6263807938110602]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3502123577103549, -1.9709199518300609, -2.07602250471994, -2.1512281520948826, -2.365965983346278, -2.289186479283815, -1.8911443909629237]}}