{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:43.844047", "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": "2011-Feb-05_to_2011-Feb-07_121.0_-30.0"}, "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": 2011020000366}, "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": "February 05 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 07 2011"}, "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": 80099.43583447821}, "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", "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": []}, "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": -30.0}, "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": 121.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 123.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.85, -29.25], [118.75, -29.0], [118.97, -28.47], [119.5, -28.25], [119.75, -28.35], [120.0, -28.25], [120.53, -28.47], [120.68, -28.82], [120.75, -28.85], [121.0, -28.75], [121.25, -28.85], [121.5, -28.75], [122.03, -28.97], [122.18, -29.32], [122.25, -29.35], [122.5, -29.25], [122.75, -29.35], [122.82, -29.32], [122.97, -28.97], [123.5, -28.75], [124.03, -28.97], [124.25, -29.5], [124.03, -30.03], [123.68, -30.18], [123.63, -30.3], [124.03, -30.47], [124.25, -31.0], [124.15, -31.25], [124.25, -31.5], [124.03, -32.03], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.75, -31.65], [121.5, -31.75], [120.97, -31.53], [120.82, -31.18], [120.75, -31.15], [120.5, -31.25], [120.25, -31.15], [120.0, -31.25], [119.47, -31.03], [119.32, -30.68], [118.97, -30.53], [118.75, -30.0], [118.85, -29.75], [118.75, -29.5], [118.85, -29.25]]]]}, "2011-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.85, -29.25], [118.75, -29.0], [118.97, -28.47], [119.5, -28.25], [119.75, -28.35], [120.0, -28.25], [120.53, -28.47], [120.68, -28.82], [120.75, -28.85], [121.0, -28.75], [121.25, -28.85], [121.5, -28.75], [122.03, -28.97], [122.18, -29.32], [122.25, -29.35], [122.5, -29.25], [122.75, -29.35], [122.82, -29.32], [122.97, -28.97], [123.5, -28.75], [124.03, -28.97], [124.25, -29.5], [124.03, -30.03], [123.68, -30.18], [123.63, -30.3], [124.03, -30.47], [124.25, -31.0], [124.15, -31.25], [124.25, -31.5], [124.03, -32.03], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.75, -31.65], [121.5, -31.75], [120.97, -31.53], [120.82, -31.18], [120.75, -31.15], [120.5, -31.25], [120.25, -31.15], [120.0, -31.25], [119.47, -31.03], [119.32, -30.68], [118.97, -30.53], [118.75, -30.0], [118.85, -29.75], [118.75, -29.5], [118.85, -29.25]]]]}, "2011-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.85, -29.25], [118.75, -29.0], [118.97, -28.47], [119.5, -28.25], [119.75, -28.35], [120.0, -28.25], [120.53, -28.47], [120.68, -28.82], [120.75, -28.85], [121.0, -28.75], [121.25, -28.85], [121.5, -28.75], [122.03, -28.97], [122.18, -29.32], [122.25, -29.35], [122.5, -29.25], [122.75, -29.35], [122.82, -29.32], [122.97, -28.97], [123.5, -28.75], [124.03, -28.97], [124.25, -29.5], [124.03, -30.03], [123.68, -30.18], [123.63, -30.3], [124.03, -30.47], [124.25, -31.0], [124.15, -31.25], [124.25, -31.5], [124.03, -32.03], [123.5, -32.25], [123.25, -32.15], [123.0, -32.25], [122.75, -32.15], [122.5, -32.25], [121.97, -32.03], [121.82, -31.68], [121.75, -31.65], [121.5, -31.75], [120.97, -31.53], [120.82, -31.18], [120.75, -31.15], [120.5, -31.25], [120.25, -31.15], [120.0, -31.25], [119.47, -31.03], [119.32, -30.68], [118.97, -30.53], [118.75, -30.0], [118.85, -29.75], [118.75, -29.5], [118.85, -29.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.186738405524011}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.716876761792905}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.71952202105848, 20.076742029957757, 20.408386909663932]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.71686300642375, 18.52190622052609, 18.258814241038806]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.114751240528477, -5.688953951978378, -5.34692509287186]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.693017484241295, -6.2828287035109724, -7.186738405524011]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5719189684667687, -1.4651290848806857, -1.4084149969867412]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6900033510418921, -1.6405255091801403, -1.7568554888335908]}}