{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:05.693426", "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-Aug-03_to_2011-Aug-05_169.0_-15.0"}, "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": 2011080000258}, "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": "August 03 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": 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": 166845.48883434501}, "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": ["Vanuatu"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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", "South Pacific 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": -15.0}, "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": 169.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "169.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 165.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 172.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.47, -12.97], [166.0, -12.75], [166.25, -12.85], [166.5, 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[166.25, -15.5], [166.35, -15.25], [166.32, -15.18], [165.97, -15.03], [165.82, -14.68], [165.47, -14.53], [165.25, -14.0], [165.35, -13.75], [165.25, -13.5], [165.47, -12.97]]]]}, "2011-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[165.47, -12.97], [166.0, -12.75], [166.25, -12.85], [166.5, -12.75], [167.03, -12.97], [167.18, -13.32], [167.53, -13.47], [167.75, -14.0], [167.65, -14.25], [167.75, -14.5], [167.65, -14.75], [167.68, -14.82], [167.8, -14.87], [167.97, -14.47], [168.32, -14.32], [168.47, -13.97], [168.82, -13.82], [168.97, -13.47], [169.5, -13.25], [169.75, -13.35], [170.0, -13.25], [170.25, -13.35], [170.5, -13.25], [171.03, -13.47], [171.18, -13.82], [171.53, -13.97], [171.68, -14.32], [171.75, -14.35], [172.0, -14.25], [172.53, -14.47], [172.75, -15.0], [172.65, -15.25], [172.75, -15.5], [172.65, -15.75], [172.75, -16.0], [172.53, -16.53], [172.18, -16.68], [172.15, -16.75], [172.25, -17.0], [172.03, -17.53], [171.68, -17.68], [171.53, -18.03], 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anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1683329366680006}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.126972146178048, 23.896296086744997, 23.882490926919445]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.09632862819808, 21.007497424924225, 20.84898522343019]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0620489360982128, -1.2329563514530457, -1.2099935224527434]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.522181283012685, -1.6885458712681611, -1.6421594675467759]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6169908617714719, -1.7946150409421686, -1.673825864383433]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9429465261447902, -2.2092515531138885, -2.080550801981511]}}