{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:20.713039", "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": "2010-Dec-22_to_2010-Dec-27_133.5_-11.5"}, "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": 2010120001026}, "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": "December 22 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 27 2010"}, "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": 173122.64892200494}, "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", "S.E.Asia"]}, "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", "Timor 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": -11.5}, "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": 133.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "133.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.85, -10.75], [132.75, -10.5], [132.97, -9.97], [133.5, -9.75], [133.75, -9.85], [134.0, -9.75], [134.53, -9.97], [134.68, -10.32], [135.03, -10.47], [135.25, -11.0], [135.15, -11.25], [135.25, -11.5], [135.03, -12.03], [134.5, -12.25], [134.25, -12.15], [134.0, -12.25], [133.75, -12.15], [133.5, -12.25], [132.97, -12.03], [132.75, -11.5], [132.85, -11.25], [132.75, -11.0], [132.85, -10.75]]]]}, "2010-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.25, -11.0], [132.47, -10.47], [132.82, -10.32], [132.97, -9.97], [133.5, -9.75], [133.75, -9.85], [134.0, -9.75], [134.25, -9.85], [134.32, -9.82], [134.35, -9.75], [134.32, -9.68], [133.97, -9.53], [133.75, -9.0], [133.85, -8.75], [133.75, -8.5], [133.97, -7.97], [134.5, -7.75], [135.03, -7.97], [135.18, -8.32], [135.25, -8.35], [135.5, -8.25], [136.03, -8.47], [136.25, -9.0], [136.15, -9.25], [136.25, -9.5], [136.03, -10.03], [135.68, -10.18], [135.65, -10.25], [135.68, -10.32], [136.03, -10.47], [136.25, -11.0], [136.13, -11.3], [136.53, -11.47], [136.75, -12.0], [136.53, -12.53], [136.0, -12.75], [135.47, -12.53], [135.3, -12.13], [135.18, -12.18], [135.03, -12.53], [134.5, -12.75], [133.97, -12.53], [133.82, -12.18], [133.75, -12.15], [133.5, -12.25], [132.97, -12.03], [132.82, -11.68], [132.47, -11.53], [132.25, -11.0]]]]}, "2010-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.47, -10.97], [132.0, -10.75], [132.3, -10.87], [132.35, -10.75], [132.25, -10.5], [132.47, -9.97], [132.82, -9.82], [132.97, -9.47], [133.5, -9.25], [133.75, -9.35], [133.88, -9.3], [133.75, -9.0], [133.85, -8.75], [133.75, -8.5], [133.97, -7.97], [134.5, -7.75], [135.03, -7.97], [135.18, -8.32], [135.25, -8.35], [135.5, -8.25], [136.03, -8.47], [136.25, -9.0], [136.15, -9.25], [136.25, -9.5], [136.15, -9.75], [136.25, -10.0], [136.15, -10.25], [136.18, -10.32], [136.53, -10.47], [136.75, -11.0], [136.65, -11.25], [136.75, -11.5], [136.65, -11.75], [136.75, -12.0], [136.53, -12.53], [136.0, -12.75], [135.75, -12.65], [135.5, -12.75], [135.0, -12.54], [134.5, -12.75], [133.97, -12.53], [133.82, -12.18], [133.75, -12.15], [133.5, -12.25], [132.97, -12.03], [132.82, -11.68], [132.7, -11.63], [132.65, -11.75], [132.75, -12.0], [132.53, -12.53], [132.0, -12.75], [131.47, -12.53], [131.25, -12.0], [131.35, -11.75], [131.25, -11.5], [131.47, -10.97]]]]}, "2010-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.47, -9.97], [129.0, -9.75], [129.25, -9.85], [129.5, -9.75], [129.75, -9.85], [130.0, -9.75], [130.53, -9.97], [130.68, -10.32], [130.75, -10.35], [130.82, -10.32], [130.97, -9.97], [131.32, -9.82], [131.35, -9.75], [131.25, -9.5], [131.47, -8.97], [132.0, -8.75], [132.25, -8.85], [132.5, -8.75], [132.75, -8.85], [133.0, -8.75], [133.53, -8.97], [133.68, -9.32], [133.75, -9.35], [133.88, -9.3], [133.75, -9.0], [133.85, -8.75], [133.75, -8.5], [133.97, -7.97], [134.5, -7.75], [135.03, -7.97], [135.18, -8.32], [135.25, -8.35], [135.5, -8.25], [136.03, -8.47], [136.25, -9.0], [136.15, -9.25], [136.25, -9.5], [136.15, -9.75], [136.25, -10.0], [136.15, -10.25], [136.18, -10.32], [136.53, -10.47], [136.75, -11.0], [136.65, -11.25], [136.75, -11.5], [136.65, -11.75], [136.75, -12.0], [136.53, -12.53], [136.0, -12.75], [135.75, -12.65], [135.5, -12.75], [135.0, -12.54], [134.5, -12.75], [133.97, -12.53], [133.82, -12.18], [133.75, -12.15], [133.5, -12.25], [133.2, -12.13], [133.03, -12.53], [132.5, -12.75], [132.25, -12.65], [132.0, -12.75], [131.5, -12.54], [131.0, -12.75], [130.47, -12.53], [130.32, -12.18], [129.97, -12.03], [129.82, -11.68], [129.5, -11.54], [129.0, -11.75], [128.47, -11.53], [128.25, -11.0], [128.35, -10.75], [128.25, -10.5], [128.47, -9.97]]]]}, "2010-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.47, -9.97], [129.0, -9.75], [129.25, -9.85], [129.5, -9.75], [129.75, -9.85], [130.0, -9.75], [130.53, -9.97], [130.68, -10.32], [130.75, -10.35], [130.82, -10.32], [130.97, -9.97], [131.32, -9.82], [131.35, -9.75], [131.25, -9.5], [131.47, -8.97], [132.0, -8.75], [132.25, -8.85], [132.5, -8.75], [132.75, -8.85], [133.0, -8.75], [133.53, -8.97], [133.68, -9.32], [133.75, -9.35], [133.88, -9.3], [133.75, -9.0], [133.85, -8.75], [133.75, -8.5], [133.97, -7.97], [134.5, -7.75], [135.03, -7.97], [135.18, -8.32], [135.53, -8.47], [135.68, -8.82], [136.03, -8.97], [136.25, -9.5], [136.15, -9.75], [136.25, -10.0], [136.15, -10.25], [136.18, -10.32], [136.53, -10.47], [136.75, -11.0], [136.65, -11.25], [136.75, -11.5], [136.53, -12.03], [136.18, -12.18], [136.03, -12.53], [135.5, -12.75], [134.97, -12.53], [134.82, -12.18], [134.75, -12.15], [134.5, -12.25], [134.25, -12.15], [134.0, -12.25], [133.75, -12.15], [133.5, -12.25], [133.2, -12.13], [133.03, -12.53], [132.5, -12.75], [132.25, -12.65], [132.0, -12.75], [131.5, -12.54], [131.0, -12.75], [130.47, -12.53], [130.32, -12.18], [129.97, -12.03], [129.82, -11.68], [129.5, -11.54], [129.0, -11.75], [128.47, -11.53], [128.25, -11.0], [128.35, -10.75], [128.25, -10.5], [128.47, -9.97]]]]}, "2010-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.47, -9.97], [129.0, -9.75], [129.25, -9.85], [129.5, -9.75], [129.75, -9.85], [130.0, -9.75], [130.53, -9.97], [130.68, -10.32], [130.75, -10.35], [130.82, -10.32], [130.97, -9.97], [131.32, -9.82], [131.35, -9.75], [131.25, -9.5], [131.47, -8.97], [132.0, -8.75], [132.25, -8.85], [132.5, -8.75], [132.75, -8.85], [133.0, -8.75], [133.53, -8.97], [133.75, -9.5], [133.63, -9.8], [134.03, -9.97], [134.25, -10.5], [134.13, -10.8], [134.5, -10.96], [134.82, -10.82], [134.97, -10.47], [135.5, -10.25], [136.03, -10.47], [136.18, -10.82], [136.53, -10.97], [136.75, -11.5], [136.53, -12.03], [136.18, -12.18], [136.03, -12.53], [135.5, -12.75], [134.97, -12.53], [134.82, -12.18], [134.5, -12.04], [134.0, -12.25], [133.75, -12.15], [133.5, -12.25], [133.2, -12.13], [133.03, -12.53], [132.5, -12.75], [131.97, -12.53], [131.82, -12.18], [131.7, -12.13], [131.53, -12.53], [131.0, -12.75], [130.47, -12.53], [130.32, -12.18], [129.97, -12.03], [129.82, -11.68], [129.5, -11.54], [129.0, -11.75], [128.47, -11.53], [128.25, -11.0], [128.35, -10.75], [128.25, -10.5], [128.47, -9.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.6569638328330711}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.085362454136614}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.04601871300332, 26.992756799175993, 26.817380326198986, 26.77299293895527, 26.947729704142773, 26.92055495764805]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.855920841494765, 26.712476103462222, 26.431297542026016, 26.09932543400788, 26.169401715866456, 26.32225266622902]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0329835298260477, -0.9745744073315993, -1.1551308584524935, -1.1892037747805984, -1.0022802147966643, -1.0545127547665922]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.271741726056348, -1.3845247412459685, -1.6569638328330711, -1.6289743145567854, -1.5215598239913106, -1.3879299278050325]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3783365637420548, -1.3701687088922532, -1.619633002585824, -1.6174195841197463, -1.3772629800464788, -1.4071892784420674]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6003853527196423, -1.7242357563773973, -2.096167367430353, -1.8701471652212391, -1.7572847247700207, -1.6408511130580863]}}