{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:07.198301", "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-Jul-04_to_2010-Jul-06_118.0_-20.0"}, "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": 2010070000225}, "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 04 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 06 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 75350.09699727599}, "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", "N.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": ["Indian Ocean"]}, "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": -20.0}, "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": 118.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, -20.0], [115.47, -19.47], [116.0, -19.25], [116.25, -19.35], [116.32, -19.32], [116.47, -18.97], [117.0, -18.75], [117.25, -18.85], [117.5, -18.75], [117.75, -18.85], [118.0, -18.75], [118.25, -18.85], [118.5, -18.75], [119.03, -18.97], [119.18, -19.32], [119.25, -19.35], [119.5, -19.25], [120.03, -19.47], [120.18, -19.82], [120.53, -19.97], [120.75, -20.5], [120.53, -21.03], [120.0, -21.25], [119.75, -21.15], [119.68, -21.18], [119.53, -21.53], [119.0, -21.75], [118.75, -21.65], [118.68, -21.68], [118.53, -22.03], [118.0, -22.25], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53], [116.32, -21.18], [115.97, -21.03], [115.82, -20.68], [115.47, -20.53], [115.25, -20.0]]]]}, "2010-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, -20.0], [115.47, -19.47], [116.0, -19.25], [116.25, -19.35], [116.32, -19.32], [116.47, -18.97], [117.0, -18.75], [117.25, -18.85], [117.5, -18.75], [117.75, -18.85], [118.0, -18.75], [118.25, -18.85], [118.5, -18.75], [119.03, -18.97], [119.18, -19.32], [119.25, -19.35], [119.5, -19.25], [120.03, -19.47], [120.18, -19.82], [120.53, -19.97], [120.75, -20.5], [120.53, -21.03], [120.0, -21.25], [119.75, -21.15], [119.68, -21.18], [119.53, -21.53], [119.0, -21.75], [118.75, -21.65], [118.68, -21.68], [118.53, -22.03], [118.0, -22.25], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53], [116.32, -21.18], [115.97, -21.03], [115.82, -20.68], [115.47, -20.53], [115.25, -20.0]]]]}, "2010-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, -20.0], [115.47, -19.47], [116.0, -19.25], [116.25, -19.35], [116.32, -19.32], [116.47, -18.97], [117.0, -18.75], [117.25, -18.85], [117.5, -18.75], [117.75, -18.85], [118.0, -18.75], [118.25, -18.85], [118.5, -18.75], [119.03, -18.97], [119.18, -19.32], [119.25, -19.35], [119.5, -19.25], [120.03, -19.47], [120.18, -19.82], [120.53, -19.97], [120.75, -20.5], [120.53, -21.03], [120.0, -21.25], [119.75, -21.15], [119.68, -21.18], [119.53, -21.53], [119.0, -21.75], [118.75, -21.65], [118.68, -21.68], [118.53, -22.03], [118.0, -22.25], [117.75, -22.15], [117.5, -22.25], [116.97, -22.03], [116.82, -21.68], [116.47, -21.53], [116.32, -21.18], [115.97, -21.03], [115.82, -20.68], [115.47, -20.53], [115.25, -20.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.032241588641455}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.721799294546753}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.159988163141634, 18.323761663132245, 18.930123201814524]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.98663901268111, 14.494414624477542, 15.924895286935566]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3864314508193356, -3.221163552022244, -2.55780288079868]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.6671758168509427, -5.032241588641455, -3.6752419977677846]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5684417351993691, -2.0708599585603626, -1.616695411837355]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8701830466937854, -2.3996445654880145, -1.9652427868287037]}}