{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:58.116767", "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": "2012-Jul-26_to_2012-Aug-01_134.5_-23.5"}, "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": 2012070001334}, "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 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 01 2012"}, "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": 232419.08008276814}, "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"]}, "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": -23.5}, "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": 134.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "134.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.25}, "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": -30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.0, -22.75], [134.53, -22.97], [134.75, -23.5], [134.53, -24.03], [134.0, -24.25], [133.47, -24.03], [133.25, -23.5], [133.47, -22.97], [134.0, -22.75]]]]}, "2012-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, -24.03], [133.25, -23.5], [133.47, -22.97], [134.0, -22.75], [134.25, -22.85], [134.5, -22.75], [135.03, -22.97], [135.25, -23.5], [135.03, -24.03], [134.5, -24.25], [134.25, -24.15], [134.0, -24.25], [133.47, -24.03]]]]}, "2012-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, -24.03], [133.25, -23.5], [133.47, -22.97], [134.0, -22.75], [134.25, -22.85], [134.5, -22.75], [135.03, -22.97], [135.25, -23.5], [135.03, -24.03], [134.5, -24.25], [134.25, -24.15], [134.0, -24.25], [133.47, -24.03]]]]}, "2012-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.5, -22.75], [135.03, -22.97], [135.25, -23.5], [135.03, -24.03], [134.5, -24.25], [133.97, -24.03], [133.75, -23.5], [133.97, -22.97], [134.5, -22.75]]]]}, "2012-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.97, -23.53], [132.75, -23.0], [132.97, -22.47], [133.5, -22.25], [133.75, -22.35], [134.0, -22.25], [134.5, -22.46], [135.0, -22.25], [135.25, -22.35], [135.5, -22.25], [136.03, -22.47], [136.25, -23.0], [136.04, -23.5], [136.18, -23.82], [136.25, -23.85], [136.5, -23.75], [137.03, -23.97], [137.25, -24.5], [137.15, -24.75], [137.18, -24.82], [137.25, -24.85], [137.5, -24.75], [138.03, -24.97], [138.18, -25.32], [138.25, -25.35], [138.5, -25.25], [138.75, -25.35], [139.0, -25.25], [139.25, -25.35], [139.5, -25.25], [140.03, -25.47], [140.25, -26.0], [140.15, -26.25], [140.18, -26.32], [140.25, -26.35], [140.5, -26.25], [141.03, -26.47], [141.25, -27.0], [141.15, -27.25], [141.25, -27.5], [141.15, -27.75], [141.25, -28.0], [141.03, -28.53], [140.5, -28.75], [140.0, -28.54], [139.5, -28.75], [139.25, -28.65], [139.18, -28.68], [139.03, -29.03], [138.5, -29.25], [138.25, -29.15], [138.18, -29.18], [138.15, -29.25], [138.25, -29.5], [138.15, -29.75], [138.25, -30.0], [138.03, -30.53], [137.5, -30.75], [137.25, -30.65], [137.0, -30.75], [136.47, -30.53], [136.25, -30.0], [136.35, -29.75], [136.25, -29.5], [136.35, -29.25], [136.32, -29.18], [135.97, -29.03], [135.75, -28.5], [135.85, -28.25], [135.82, -28.18], [135.47, -28.03], [135.32, -27.68], [135.25, -27.65], [135.0, -27.75], [134.47, -27.53], [134.32, -27.18], [133.97, -27.03], [133.82, -26.68], [133.47, -26.53], [133.25, -26.0], [133.47, -25.47], [133.88, -25.3], [133.82, -25.18], [133.47, -25.03], [133.25, -24.5], [133.47, -23.97], [133.82, -23.82], [133.85, -23.75], [133.82, -23.68], [133.75, -23.65], [133.5, -23.75], [132.97, -23.53]]]]}, "2012-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.97, -23.53], [132.75, -23.0], [132.97, -22.47], [133.5, -22.25], [133.75, -22.35], [134.0, -22.25], [134.5, -22.46], [135.0, -22.25], [135.25, -22.35], [135.5, -22.25], [136.03, -22.47], [136.25, -23.0], [136.04, -23.5], [136.18, -23.82], [136.25, -23.85], [136.5, -23.75], [137.03, -23.97], [137.25, -24.5], [137.15, -24.75], [137.18, -24.82], [137.25, -24.85], [137.5, -24.75], [138.03, -24.97], [138.18, -25.32], [138.25, -25.35], [138.5, -25.25], [138.75, -25.35], [139.0, -25.25], [139.25, -25.35], [139.5, -25.25], [140.03, -25.47], [140.25, -26.0], [140.15, -26.25], [140.18, -26.32], [140.25, -26.35], [140.5, -26.25], [141.03, -26.47], [141.25, -27.0], [141.15, -27.25], [141.25, -27.5], [141.15, -27.75], [141.25, -28.0], [141.03, -28.53], [140.5, -28.75], [140.0, -28.54], [139.5, -28.75], [139.25, -28.65], [139.18, -28.68], [139.03, -29.03], [138.5, -29.25], [138.25, -29.15], [138.18, -29.18], [138.15, -29.25], [138.25, -29.5], [138.15, -29.75], [138.25, -30.0], [138.03, -30.53], [137.5, -30.75], [137.25, -30.65], [137.0, -30.75], [136.47, -30.53], [136.25, -30.0], [136.35, -29.75], [136.25, -29.5], [136.35, -29.25], [136.32, -29.18], [135.97, -29.03], [135.75, -28.5], [135.85, -28.25], [135.82, -28.18], [135.47, -28.03], [135.32, -27.68], [135.25, -27.65], [135.0, -27.75], [134.47, -27.53], [134.32, -27.18], [133.97, -27.03], [133.82, -26.68], [133.47, -26.53], [133.25, -26.0], [133.47, -25.47], [133.88, -25.3], [133.82, -25.18], [133.47, -25.03], [133.25, -24.5], [133.47, -23.97], [133.82, -23.82], [133.85, -23.75], [133.82, -23.68], [133.75, -23.65], [133.5, -23.75], [132.97, -23.53]]]]}, "2012-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.97, -23.53], [132.75, -23.0], [132.97, -22.47], [133.5, -22.25], [133.75, -22.35], [134.0, -22.25], [134.5, -22.46], [135.0, -22.25], [135.25, -22.35], [135.5, -22.25], [136.03, -22.47], [136.25, -23.0], [136.04, -23.5], [136.18, -23.82], [136.25, -23.85], [136.5, -23.75], [137.03, -23.97], [137.25, -24.5], [137.15, -24.75], [137.18, -24.82], [137.25, -24.85], [137.5, -24.75], [138.03, -24.97], [138.18, -25.32], [138.25, -25.35], [138.5, -25.25], [138.75, -25.35], [139.0, -25.25], [139.25, -25.35], [139.5, -25.25], [140.03, -25.47], [140.25, -26.0], [140.15, -26.25], [140.18, -26.32], [140.25, -26.35], [140.5, -26.25], [141.03, -26.47], [141.25, -27.0], [141.15, -27.25], [141.25, -27.5], [141.15, -27.75], [141.25, -28.0], [141.03, -28.53], [140.5, -28.75], [140.0, -28.54], [139.5, -28.75], [139.25, -28.65], [139.18, -28.68], [139.03, -29.03], [138.5, -29.25], [138.25, -29.15], [138.18, -29.18], [138.15, -29.25], [138.25, -29.5], [138.15, -29.75], [138.25, -30.0], [138.03, -30.53], [137.5, -30.75], [137.25, -30.65], [137.0, -30.75], [136.47, -30.53], [136.25, -30.0], [136.35, -29.75], [136.25, -29.5], [136.35, -29.25], [136.32, -29.18], [135.97, -29.03], [135.75, -28.5], [135.85, -28.25], [135.82, -28.18], [135.47, -28.03], [135.32, -27.68], [135.25, -27.65], [135.0, -27.75], [134.47, -27.53], [134.32, -27.18], [133.97, -27.03], [133.82, -26.68], [133.47, -26.53], [133.25, -26.0], [133.47, -25.47], [133.88, -25.3], [133.82, -25.18], [133.47, -25.03], [133.25, -24.5], [133.47, -23.97], [133.82, -23.82], [133.88, -23.7], [133.75, -23.65], [133.5, -23.75], [132.97, -23.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.971218566577079}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.349084061204877}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.748694830376564, 8.03777726654971, 8.888800184695015, 9.13153590494261, 10.182582086689592, 9.586670254618014, 10.077930792252232]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.748694830376564, 7.909255090460704, 8.809847197793374, 9.13153590494261, 8.56762250011468, 7.7275865672016835, 8.829342015561053]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.469250995217294, -5.453513786405097, -4.7106949218000125, -4.535418436116345, -4.028433447094466, -4.7082900784469315, -4.270563561931204]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.469250995217294, -5.463598506177732, -4.7555054474400436, -4.535418436116345, -5.053027277063961, -5.971218566577079, -5.5006901626747435]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.322757396502715, -1.603620202532455, -1.3395383814571613, -1.2498544603413408, -1.3110113311882972, -1.521451165912883, -1.412202523696285]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.322757396502715, -1.6159019377509674, -1.3431393046013598, -1.2498544603413408, -1.4756900232283536, -1.7570549368281083, -1.6302780271038648]}}