{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:39.751548", "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": "2014-Jun-29_to_2014-Jul-02_149.0_-24.0"}, "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": 2014060001121}, "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 29 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 02 2014"}, "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": 68068.14078558738}, "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": ["C.Australia", "E.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": -24.0}, "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": 149.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "149.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 144.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 149.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.47, -24.53], [148.25, -24.0], [148.47, -23.47], [149.0, -23.25], [149.53, -23.47], [149.75, -24.0], [149.53, -24.53], [149.0, -24.75], [148.47, -24.53]]], [[[143.97, -20.97], [144.5, -20.75], [145.03, -20.97], [145.18, -21.32], [145.25, -21.35], [145.5, -21.25], [146.03, -21.47], [146.18, -21.82], [146.53, -21.97], [146.7, -22.37], [147.0, -22.25], [147.53, -22.47], [147.75, -23.0], [147.65, -23.25], [147.75, -23.5], [147.65, -23.75], [147.68, -23.82], [148.03, -23.97], [148.25, -24.5], [148.15, -24.75], [148.25, -25.0], [148.03, -25.53], [147.5, -25.75], [146.97, -25.53], [146.82, -25.18], [146.75, -25.15], [146.5, -25.25], [145.97, -25.03], [145.82, -24.68], [145.47, -24.53], [145.32, -24.18], [144.97, -24.03], [144.75, -23.5], [144.85, -23.25], [144.75, -23.0], [144.85, -22.75], [144.82, -22.68], [144.47, -22.53], [144.32, -22.18], [143.97, -22.03], [143.75, -21.5], [143.97, -20.97]]]]}, "2014-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -21.5], [143.97, -20.97], [144.5, -20.75], [145.03, -20.97], [145.18, -21.32], [145.25, -21.35], [145.5, -21.25], [146.03, -21.47], [146.18, -21.82], [146.53, -21.97], [146.7, -22.37], [147.0, -22.25], [147.25, -22.35], [147.5, -22.25], [148.03, -22.47], [148.18, -22.82], [148.25, -22.85], [148.5, -22.75], [149.03, -22.97], [149.18, -23.32], [149.53, -23.47], [149.75, -24.0], [149.53, -24.53], [149.0, -24.75], [148.47, -24.53], [148.32, -24.18], [148.25, -24.15], [148.18, -24.18], [148.15, -24.25], [148.25, -24.5], [148.15, -24.75], [148.25, -25.0], [148.03, -25.53], [147.5, -25.75], [146.97, -25.53], [146.82, -25.18], [146.75, -25.15], [146.5, -25.25], [145.97, -25.03], [145.82, -24.68], [145.47, -24.53], [145.32, -24.18], [144.97, -24.03], [144.75, -23.5], [144.85, -23.25], [144.75, -23.0], [144.85, -22.75], [144.82, -22.68], [144.47, -22.53], [144.32, -22.18], [143.97, -22.03], [143.75, -21.5]]]]}, "2014-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -21.5], [143.97, -20.97], [144.5, -20.75], [145.03, -20.97], [145.18, -21.32], [145.25, -21.35], [145.5, -21.25], [146.03, -21.47], [146.18, -21.82], [146.53, -21.97], [146.7, -22.37], [147.0, -22.25], [147.25, -22.35], [147.5, -22.25], [148.03, -22.47], [148.18, -22.82], [148.25, -22.85], [148.5, -22.75], [149.03, -22.97], [149.18, -23.32], [149.53, -23.47], [149.75, -24.0], [149.53, -24.53], [149.0, -24.75], [148.47, -24.53], [148.32, -24.18], [148.25, -24.15], [148.18, -24.18], [148.15, -24.25], [148.25, -24.5], [148.15, -24.75], [148.25, -25.0], [148.03, -25.53], [147.5, -25.75], [146.97, -25.53], [146.82, -25.18], [146.75, -25.15], [146.5, -25.25], [145.97, -25.03], [145.82, -24.68], [145.47, -24.53], [145.32, -24.18], [144.97, -24.03], [144.75, -23.5], [144.85, -23.25], [144.75, -23.0], [144.85, -22.75], [144.82, -22.68], [144.47, -22.53], [144.32, -22.18], [143.97, -22.03], [143.75, -21.5]]]]}, "2014-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.85, -23.25], [146.75, -23.0], [146.97, -22.47], [147.5, -22.25], [148.03, -22.47], [148.18, -22.82], [148.25, -22.85], [148.5, -22.75], [149.03, -22.97], [149.18, -23.32], [149.53, -23.47], [149.75, -24.0], [149.53, -24.53], [149.0, -24.75], [148.47, -24.53], [148.32, -24.18], [148.25, -24.15], [148.18, -24.18], [148.03, -24.53], [147.5, -24.75], [146.97, -24.53], [146.75, -24.0], [146.85, -23.75], [146.75, -23.5], [146.85, -23.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.016298496101911}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.214544620342991}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.383505297501756, 10.45725615521286, 10.040469942957372, 11.198731814387145]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.84436305597734, 7.702392667877575, 7.551775514679093, 10.571557442226663]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.09409254000381, -4.103236151569402, -4.570178491586191, -3.6186745982052835]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.750715721950371, -4.9484638330627035, -5.016298496101911, -3.876773139268664]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5743916315860185, -1.5773817350312822, -1.747647001715799, -1.4461084324379592]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6808839224044347, -1.709913348008242, -2.034434154075248, -1.5481973591692375]}}