{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:58.407837", "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-Jul-31_to_2011-Aug-05_144.5_-6.5"}, "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": 2011070001655}, "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 31 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 2011"}, "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": 67495.32262283524}, "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": ["Papua New Guinea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": -6.5}, "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": 144.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "144.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 141.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 146.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.5, -7.75], [144.03, -7.97], [144.25, -8.5], [144.03, -9.03], [143.5, -9.25], [142.97, -9.03], [142.75, -8.5], [142.97, -7.97], [143.5, -7.75]]]]}, "2011-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.03, -9.03], [143.5, -9.25], [142.97, -9.03], [142.75, -8.5], [142.97, -7.97], [143.5, -7.75], [144.03, -7.97], [144.25, -8.5], [144.03, -9.03]]], [[[141.47, -5.47], [142.0, -5.25], [142.53, -5.47], [142.68, -5.82], [143.03, -5.97], [143.18, -6.32], [143.25, -6.35], [143.5, -6.25], [143.75, -6.35], [144.0, -6.25], [144.53, -6.47], [144.75, -7.0], [144.53, -7.53], [144.0, -7.75], [143.75, -7.65], [143.5, -7.75], [143.25, -7.65], [143.0, -7.75], [142.47, -7.53], [142.32, -7.18], [141.97, -7.03], [141.82, -6.68], [141.47, -6.53], [141.25, -6.0], [141.47, -5.47]]]]}, "2011-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.75, -5.5], [140.97, -4.97], [141.5, -4.75], [142.03, -4.97], [142.18, -5.32], [142.53, -5.47], [142.68, -5.82], [142.75, -5.85], [143.0, -5.75], [143.25, -5.85], [143.5, 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[140.97, -4.97], [141.5, -4.75], [142.03, -4.97], [142.25, -5.5], [142.03, -6.03], [141.5, -6.25], [140.97, -6.03], [140.75, -5.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.183665927757204}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7474293259366738}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.272497675464592, 22.364064156440804, 20.312004495745725, 20.083090401034042, 19.907842848356495, 21.274111729315223]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.272497675464592, 20.81116759160176, 14.877661620754736, 14.022661289244581, 14.42916059987789, 16.864937941819846]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.6395565799261362, -1.1470001933920457, -1.7438524325035438, -2.028185414991118, -1.855722553367747, -0.8834801349665753]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.6395565799261362, -1.4358511579097808, -2.2504972295100742, -3.183665927757204, -2.6813076628971544, -1.1634689467207409]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2886430506239201, -1.3549061337670576, -1.8368563459743197, -2.197493296428896, -1.9304281790643658, -1.2350064163108752]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2886430506239201, -1.664207878460222, -2.4143068189169274, -3.066223934235407, -2.515910056304925, -1.4079033676544572]}}