{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:30.758181", "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-Jan-06_to_2011-Jan-09_151.5_-24.0"}, "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": 2011010000420}, "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": "January 06 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 113352.71170239111}, "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": ["E.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": ["Coral 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": -24.0}, "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": 151.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "151.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 150.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 153.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.35, -24.25], [150.25, -24.0], [150.35, -23.75], [150.25, -23.5], [150.35, -23.25], [150.25, -23.0], [150.35, -22.75], [150.25, -22.5], [150.35, -22.25], [150.25, -22.0], [150.47, -21.47], [151.0, -21.25], [151.25, -21.35], [151.32, -21.32], [151.47, -20.97], [152.0, -20.75], [152.25, -20.85], [152.5, -20.75], [153.03, -20.97], [153.18, -21.32], [153.53, -21.47], [153.75, -22.0], [153.65, -22.25], [153.68, -22.32], [154.03, -22.47], [154.25, -23.0], [154.15, -23.25], [154.25, -23.5], [154.03, -24.03], [153.68, -24.18], [153.53, -24.53], [153.13, -24.7], [153.25, -25.0], [153.15, -25.25], [153.18, -25.32], [153.53, -25.47], [153.75, -26.0], [153.53, -26.53], [153.0, -26.75], [152.47, -26.53], [152.32, -26.18], [152.25, -26.15], [152.0, -26.25], [151.75, -26.15], [151.5, -26.25], [150.97, -26.03], [150.82, -25.68], [150.47, -25.53], [150.25, -25.0], [150.35, -24.75], [150.25, -24.5], [150.35, -24.25]]]]}, "2011-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.35, -24.25], [150.25, -24.0], [150.35, -23.75], [150.25, -23.5], [150.35, -23.25], [150.25, -23.0], [150.35, -22.75], [150.25, -22.5], [150.35, -22.25], [150.25, -22.0], [150.47, -21.47], [151.0, -21.25], [151.25, -21.35], [151.32, -21.32], [151.47, -20.97], [152.0, -20.75], [152.25, -20.85], [152.5, -20.75], [153.03, -20.97], [153.18, -21.32], [153.53, -21.47], [153.75, -22.0], [153.65, -22.25], [153.68, -22.32], [154.03, -22.47], [154.25, -23.0], [154.15, -23.25], [154.25, -23.5], [154.03, -24.03], [153.68, -24.18], [153.53, -24.53], [153.13, -24.7], [153.25, -25.0], [153.15, -25.25], [153.18, -25.32], [153.53, -25.47], [153.75, -26.0], [153.53, -26.53], [153.0, -26.75], [152.47, -26.53], [152.32, -26.18], [152.25, -26.15], [152.0, -26.25], [151.75, -26.15], [151.5, -26.25], [150.97, -26.03], [150.82, -25.68], [150.47, -25.53], [150.25, -25.0], [150.35, -24.75], [150.25, -24.5], [150.35, -24.25]]]]}, "2011-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.35, -24.25], [150.25, -24.0], [150.35, -23.75], [150.25, -23.5], [150.35, -23.25], [150.25, -23.0], [150.35, -22.75], [150.25, -22.5], [150.35, -22.25], [150.25, -22.0], [150.47, -21.47], [151.0, -21.25], [151.25, -21.35], [151.32, -21.32], [151.47, -20.97], [152.0, -20.75], [152.25, -20.85], [152.5, -20.75], [153.03, -20.97], [153.18, -21.32], [153.53, -21.47], [153.75, -22.0], [153.65, -22.25], [153.68, -22.32], [154.03, -22.47], [154.25, -23.0], [154.15, -23.25], [154.25, -23.5], [154.03, -24.03], [153.68, -24.18], [153.53, -24.53], [153.13, -24.7], [153.25, -25.0], [153.15, -25.25], [153.18, -25.32], [153.53, -25.47], [153.75, -26.0], [153.53, -26.53], [153.0, -26.75], [152.47, -26.53], [152.32, -26.18], [152.25, -26.15], [152.0, -26.25], [151.75, -26.15], [151.5, -26.25], [150.97, -26.03], [150.82, -25.68], [150.47, -25.53], [150.25, -25.0], [150.35, -24.75], [150.25, -24.5], [150.35, -24.25]]]]}, "2011-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.97, -26.03], [150.75, -25.5], [150.97, -24.97], [151.5, -24.75], [152.03, -24.97], [152.25, -25.5], [152.03, -26.03], [151.5, -26.25], [150.97, -26.03]]], [[[150.97, -22.53], [150.75, -22.0], [150.97, -21.47], [151.5, -21.25], [152.03, -21.47], [152.25, -22.0], [152.03, -22.53], [151.5, -22.75], [150.97, -22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.968542048832376}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0935894157673123}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.243675348735565, 23.478927619853152, 24.10758864829006, 24.306119981556492]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.117618357532137, 19.74182654110075, 21.960072337405848, 23.451003255997364]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.436881328977921, -2.2250367439104553, -1.6345102016353323, -1.7803888713318656]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.743861109994498, -4.968542048832376, -2.636128279429215, -2.4865247526034864]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.0778372454968594, -1.8694450982586726, -1.4489210507867534, -1.225532713206048]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.931528921950478, -2.5604445379985257, -1.734494094092757, -1.248819248480038]}}