{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:26.770088", "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": "2024-Jul-26_to_2024-Jul-31_142.0_-36.5"}, "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": 2024070000652}, "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": "July 26 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 242225.12950085738}, "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": ["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": ["Great Australian Bight"]}, "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": -36.5}, "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": 142.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 134.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -31.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.75, -34.5], [133.97, -33.97], [134.5, -33.75], [135.03, -33.97], [135.18, -34.32], [135.53, -34.47], [135.75, -35.0], [135.53, -35.53], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.75, -34.5]]]]}, "2024-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.75, -34.5], [133.97, -33.97], [134.5, -33.75], [134.8, -33.87], [134.97, -33.47], [135.32, -33.32], [135.35, -33.25], [135.25, -33.0], [135.35, -32.75], [135.25, -32.5], [135.35, -32.25], [135.25, -32.0], [135.47, -31.47], [136.0, -31.25], [136.25, -31.35], [136.5, -31.25], [136.75, -31.35], [136.82, -31.32], [136.97, -30.97], [137.5, -30.75], [137.75, -30.85], [138.0, -30.75], [138.53, -30.97], [138.75, -31.5], [138.65, -31.75], [138.68, -31.82], [138.75, -31.85], [139.0, -31.75], [139.25, -31.85], [139.5, -31.75], [140.03, -31.97], [140.18, -32.32], [140.25, -32.35], [140.5, -32.25], [140.75, -32.35], [141.0, -32.25], [141.53, -32.47], [141.68, -32.82], [141.75, -32.85], [142.0, -32.75], [142.25, -32.85], [142.5, -32.75], [143.03, -32.97], [143.25, -33.5], [143.15, -33.75], [143.25, -34.0], [143.15, -34.25], [143.25, -34.5], [143.15, -34.75], [143.25, -35.0], [143.15, -35.25], [143.25, -35.5], [143.04, -36.0], [143.25, -36.5], [143.03, -37.03], [142.68, -37.18], [142.65, -37.25], [142.75, -37.5], [142.53, -38.03], [142.0, -38.25], [141.75, -38.15], [141.5, -38.25], [141.25, -38.15], [141.0, -38.25], [140.75, -38.15], [140.5, -38.25], [139.97, -38.03], [139.75, -37.5], [139.85, -37.25], [139.82, -37.18], [139.47, -37.03], [139.32, -36.68], [138.97, -36.53], [138.82, -36.18], [138.75, -36.15], [138.5, -36.25], [137.97, -36.03], [137.75, -35.5], [137.97, -34.97], [138.32, -34.82], [138.46, -34.5], [138.25, -34.0], [138.35, -33.75], [138.3, -33.62], [138.0, -33.75], [137.75, -33.65], [137.68, -33.68], [137.53, -34.03], [137.18, -34.18], [137.03, -34.53], [136.68, -34.68], [136.53, -35.03], [136.0, -35.25], [135.75, -35.15], [135.68, -35.18], [135.53, -35.53], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.75, -34.5]]]]}, "2024-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.75, -34.5], [133.97, -33.97], [134.5, -33.75], [134.8, -33.87], [134.97, -33.47], [135.32, -33.32], [135.35, -33.25], [135.25, -33.0], [135.35, -32.75], [135.25, -32.5], [135.35, -32.25], [135.25, -32.0], [135.47, -31.47], [136.0, -31.25], [136.25, -31.35], [136.5, -31.25], [136.75, -31.35], [136.82, -31.32], [136.97, -30.97], [137.5, -30.75], [137.75, -30.85], [138.0, -30.75], [138.53, -30.97], [138.75, -31.5], [138.65, -31.75], [138.68, -31.82], [138.75, -31.85], [139.0, -31.75], [139.25, -31.85], [139.5, -31.75], [140.03, -31.97], [140.18, -32.32], [140.25, -32.35], [140.5, -32.25], [140.75, -32.35], [141.0, -32.25], [141.25, -32.35], [141.5, -32.25], [142.03, -32.47], [142.18, -32.82], [142.25, -32.85], [142.5, -32.75], [143.03, -32.97], [143.25, -33.5], [143.15, -33.75], [143.18, -33.82], [143.53, -33.97], [143.75, -34.5], [143.53, -35.03], [143.18, -35.18], [143.15, -35.25], [143.25, -35.5], [143.04, -36.0], [143.25, -36.5], [143.03, -37.03], [142.68, -37.18], [142.65, -37.25], [142.75, -37.5], [142.53, -38.03], [142.0, -38.25], [141.75, -38.15], [141.5, -38.25], [141.25, -38.15], [141.0, -38.25], [140.75, -38.15], [140.5, -38.25], [139.97, -38.03], [139.75, -37.5], [139.85, -37.25], [139.82, -37.18], [139.47, -37.03], [139.32, -36.68], [138.97, -36.53], [138.82, -36.18], [138.75, -36.15], [138.5, -36.25], [137.97, -36.03], [137.75, -35.5], [137.97, -34.97], [138.32, -34.82], [138.46, -34.5], [138.25, -34.0], [138.35, -33.75], [138.3, -33.62], [138.0, -33.75], [137.75, -33.65], [137.68, -33.68], [137.53, -34.03], [137.18, -34.18], [137.03, -34.53], [136.68, -34.68], [136.53, -35.03], [136.0, -35.25], [135.75, -35.15], [135.68, -35.18], [135.53, -35.53], [135.0, -35.75], [134.47, -35.53], [134.32, -35.18], [133.97, -35.03], [133.75, -34.5]]]]}, "2024-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, -33.47], [135.32, -33.32], [135.35, -33.25], [135.25, -33.0], [135.35, -32.75], [135.25, -32.5], [135.35, -32.25], [135.25, -32.0], [135.47, -31.47], [136.0, -31.25], [136.25, -31.35], [136.5, -31.25], [136.75, -31.35], [136.82, -31.32], [136.97, -30.97], [137.5, -30.75], [137.75, -30.85], [138.0, -30.75], [138.53, -30.97], [138.75, -31.5], [138.65, -31.75], [138.68, -31.82], [138.75, -31.85], [139.0, -31.75], [139.25, -31.85], [139.5, -31.75], [140.03, -31.97], [140.18, -32.32], [140.25, -32.35], [140.5, -32.25], [140.75, -32.35], [141.0, -32.25], [141.25, -32.35], [141.5, -32.25], [142.03, -32.47], [142.18, -32.82], [142.25, -32.85], [142.5, -32.75], [143.03, -32.97], [143.25, -33.5], [143.15, -33.75], [143.18, -33.82], [143.53, -33.97], [143.75, -34.5], [143.53, -35.03], [143.18, -35.18], [143.15, -35.25], [143.25, -35.5], [143.04, -36.0], [143.25, -36.5], [143.03, -37.03], [142.68, -37.18], [142.65, -37.25], [142.75, -37.5], [142.53, -38.03], [142.0, -38.25], [141.75, -38.15], [141.5, -38.25], [141.25, -38.15], [141.0, -38.25], [140.75, -38.15], [140.5, -38.25], [139.97, -38.03], [139.75, -37.5], [139.85, -37.25], [139.82, -37.18], [139.47, -37.03], [139.32, -36.68], [138.97, -36.53], [138.82, -36.18], [138.75, -36.15], [138.5, -36.25], [137.97, -36.03], [137.75, -35.5], [137.97, -34.97], [138.32, -34.82], [138.46, -34.5], [138.25, -34.0], [138.35, -33.75], [138.3, -33.62], [138.0, -33.75], [137.75, -33.65], [137.68, -33.68], [137.53, -34.03], [137.18, -34.18], [137.03, -34.53], [136.68, -34.68], [136.53, -35.03], [136.0, -35.25], [135.75, -35.15], [135.5, -35.25], [134.97, -35.03], [134.75, -34.5], [134.85, -34.25], [134.75, -34.0], [134.97, -33.47]]]]}, "2024-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -36.5], [139.47, -35.97], [140.0, -35.75], [140.53, -35.97], [140.75, -36.5], [140.53, -37.03], [140.0, -37.25], [139.47, -37.03], [139.25, -36.5]]], [[[141.47, -35.97], [142.0, -35.75], [142.53, -35.97], [142.75, -36.5], [142.53, -37.03], [142.0, -37.25], [141.47, -37.03], [141.25, -36.5], [141.47, -35.97]]], [[[135.47, -33.97], [136.0, -33.75], [136.53, -33.97], [136.75, -34.5], [136.53, -35.03], [136.0, -35.25], [135.47, -35.03], [135.25, -34.5], [135.47, -33.97]]], [[[142.47, -33.97], [143.0, -33.75], [143.53, -33.97], [143.75, -34.5], [143.53, -35.03], [143.0, -35.25], [142.47, -35.03], [142.25, -34.5], [142.47, -33.97]]], [[[140.25, -34.0], [140.15, -34.25], [140.25, -34.5], [140.03, -35.03], [139.5, -35.25], [138.97, -35.03], [138.75, -34.5], [138.85, -34.25], [138.75, -34.0], [138.97, -33.47], [139.5, -33.25], [140.03, -33.47], [140.25, -34.0]]], [[[140.97, -32.47], [141.5, -32.25], [142.03, -32.47], [142.25, -33.0], [142.03, -33.53], [141.5, -33.75], [140.97, -33.53], [140.75, -33.0], [140.97, -32.47]]], [[[137.2, -31.87], [137.5, -31.75], [138.03, -31.97], [138.25, -32.5], [138.03, -33.03], [137.5, -33.25], [137.0, -33.04], [136.5, -33.25], [135.97, -33.03], [135.75, -32.5], [135.85, -32.25], [135.75, -32.0], [135.97, -31.47], [136.5, -31.25], [137.03, -31.47], [137.2, -31.87]]]]}, "2024-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.47, -35.03], [142.25, -34.5], [142.47, -33.97], [143.0, -33.75], [143.53, -33.97], [143.75, -34.5], [143.53, -35.03], [143.0, -35.25], [142.47, -35.03]]], [[[140.97, -33.53], [140.75, -33.0], [140.97, -32.47], [141.5, -32.25], [142.03, -32.47], [142.25, -33.0], [142.03, -33.53], [141.5, -33.75], [140.97, -33.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.1955731489099435}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.4268596740850965}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.63663605475449, 7.102018018970398, 6.717013548462376, 6.97579093035182, 7.8592376629353, 7.226752564029994]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.523796314434719, 4.228479365004262, 4.302136423218656, 5.238690307512968, 6.451757416848295, 6.89505639667567]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5044891958871176, -3.274871862727314, -3.7154657499490087, -3.40006059128916, -2.739272636563612, -3.3159734088238224]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.5158341211067636, -3.9563568972197345, -5.1955731489099435, -4.2903613978981525, -3.415133214860191, -3.5281516564982667]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.283229070190218, -1.568029282307093, -1.739951133750253, -1.6109092492818344, -1.3059037004431542, -1.3594814790372296]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2939682309603444, -1.9900452020676684, -2.128603617892478, -2.382476308435133, -1.481542436188747, -1.3827113902034398]}}