{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:31.383388", "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": "2015-Mar-23_to_2015-Mar-27_132.5_-13.0"}, "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": 2015030000835}, "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": "March 23 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 27 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 60090.29954046967}, "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"]}, "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": ["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": -13.0}, "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": 132.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "132.5\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": 133.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.97, -11.97], [132.5, -11.75], [133.03, -11.97], [133.18, -12.32], [133.53, -12.47], [133.75, -13.0], [133.53, -13.53], [133.0, -13.75], [132.75, -13.65], [132.5, -13.75], [131.97, -13.53], [131.75, -13.0], [131.85, -12.75], [131.75, -12.5], [131.97, -11.97]]]]}, "2015-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.47, -12.47], [131.0, -12.25], [131.25, -12.35], [131.32, -12.32], [131.47, -11.97], [132.0, -11.75], [132.25, -11.85], [132.5, -11.75], [133.03, -11.97], [133.18, -12.32], [133.53, -12.47], [133.75, -13.0], [133.53, -13.53], [133.18, -13.68], [133.03, -14.03], [132.68, -14.18], [132.54, -14.5], [132.75, -15.0], [132.53, -15.53], [132.0, -15.75], [131.47, -15.53], [131.32, -15.18], [131.25, -15.15], [131.0, -15.25], [130.47, -15.03], [130.25, -14.5], [130.46, -14.0], [130.25, -13.5], [130.35, -13.25], [130.25, -13.0], [130.47, -12.47]]]]}, "2015-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -14.0], [128.47, -13.47], [129.0, -13.25], [129.25, -13.35], [129.32, -13.32], [129.47, -12.97], [130.0, -12.75], [130.25, -12.85], [130.32, -12.82], [130.47, -12.47], [131.0, -12.25], [131.25, -12.35], [131.32, -12.32], [131.47, -11.97], [132.0, -11.75], [132.25, -11.85], [132.5, -11.75], [133.03, -11.97], [133.18, -12.32], [133.53, -12.47], [133.75, -13.0], [133.53, -13.53], [133.18, -13.68], [133.03, -14.03], [132.68, -14.18], [132.54, -14.5], [132.75, -15.0], [132.53, -15.53], [132.0, -15.75], [131.47, -15.53], [131.32, -15.18], [131.25, -15.15], [131.0, -15.25], [130.47, -15.03], [130.25, -14.5], [130.03, -15.03], [129.5, -15.25], [128.97, -15.03], [128.82, -14.68], [128.47, -14.53], [128.25, -14.0]], [[130.38, -14.2], [130.25, -14.15], [130.18, -14.18], [130.15, -14.25], [130.25, -14.5], [130.38, -14.2]]]]}, "2015-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -14.0], [128.47, -13.47], [129.0, -13.25], [129.25, -13.35], [129.32, -13.32], [129.47, -12.97], [130.0, -12.75], [130.25, -12.85], [130.32, -12.82], [130.47, -12.47], [131.0, -12.25], [131.25, -12.35], [131.32, -12.32], [131.47, -11.97], [132.0, -11.75], [132.25, -11.85], [132.5, -11.75], [133.03, -11.97], [133.18, -12.32], [133.53, -12.47], [133.75, -13.0], [133.53, -13.53], [133.18, -13.68], [133.03, -14.03], [132.68, -14.18], [132.54, -14.5], [132.75, -15.0], [132.53, -15.53], [132.0, -15.75], [131.47, -15.53], [131.32, -15.18], [131.25, -15.15], [131.0, -15.25], [130.47, -15.03], [130.25, -14.5], [130.03, -15.03], [129.5, -15.25], [128.97, -15.03], [128.82, -14.68], [128.47, -14.53], [128.25, -14.0]], [[130.38, -14.2], [130.25, -14.15], [130.18, -14.18], [130.15, -14.25], [130.25, -14.5], [130.38, -14.2]]]]}, "2015-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -14.0], [128.47, -13.47], [129.0, -13.25], [129.25, -13.35], [129.32, -13.32], [129.47, -12.97], [130.0, -12.75], [130.25, -12.85], [130.32, -12.82], [130.47, -12.47], [131.0, -12.25], [131.25, -12.35], [131.32, -12.32], [131.47, -11.97], [132.0, -11.75], [132.25, -11.85], [132.5, -11.75], [133.03, -11.97], [133.25, -12.5], [133.15, -12.75], [133.25, -13.0], [133.03, -13.53], [132.68, -13.68], [132.53, -14.03], [132.0, -14.25], [131.75, -14.15], [131.5, -14.25], [131.25, -14.15], [131.0, -14.25], [130.75, -14.15], [130.5, -14.25], [130.25, -14.15], [130.18, -14.18], [130.15, -14.25], [130.25, -14.5], [130.03, -15.03], [129.5, -15.25], [128.97, -15.03], [128.82, -14.68], [128.47, -14.53], [128.25, -14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.8466704813263277}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.1184692028073266}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.332417599655344, 25.325348730132305, 26.269459324499508, 26.4791619561596, 26.59085749314721]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.091798850844782, 24.063199834902434, 24.498178405055114, 25.796103144046356, 25.689297706382035]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8803377068875307, -2.7997621982354377, -2.042499259580521, -1.8322267453416998, -1.9569868863920672]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.2269859198484028, -3.8466704813263277, -3.384075729245012, -2.6014024667595095, -2.422685596333679]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9427588255389487, -2.7574509019390425, -1.9650406004289418, -1.7906133898453802, -1.9540500098399212]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4677527367847225, -3.6502012592725115, -2.7825895822226063, -2.4516028350713674, -2.538213801221441]}}