{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:19.073361", "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": "2014-Sep-27_to_2014-Oct-02_142.0_-8.5"}, "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": 2014090000975}, "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": "September 27 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 2014"}, "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": 55045.97448405842}, "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": ["Indonesia", "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": []}, "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": -8.5}, "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": 142.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.47, -9.03], [141.25, -8.5], [141.47, -7.97], [142.0, -7.75], [142.25, -7.85], [142.5, -7.75], [143.03, -7.97], [143.18, -8.32], [143.53, -8.47], [143.75, -9.0], [143.53, -9.53], [143.0, -9.75], [142.47, -9.53], [142.32, -9.18], [142.25, -9.15], [142.0, -9.25], [141.47, -9.03]]]]}, "2014-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -8.53], [138.75, -8.0], [138.97, -7.47], [139.5, -7.25], [139.75, -7.35], [139.82, -7.32], [139.97, -6.97], [140.5, -6.75], [140.75, -6.85], [141.0, -6.75], [141.53, -6.97], [141.68, -7.32], [142.03, -7.47], [142.18, -7.82], [142.25, -7.85], [142.5, -7.75], [143.03, -7.97], [143.18, -8.32], [143.53, -8.47], [143.75, -9.0], [143.53, -9.53], [143.0, -9.75], [142.47, -9.53], [142.32, -9.18], [142.25, -9.15], [142.0, -9.25], [141.75, -9.15], [141.5, -9.25], [140.97, -9.03], [140.82, -8.68], [140.75, -8.65], [140.5, -8.75], [140.25, -8.65], [140.0, -8.75], [139.75, -8.65], [139.5, -8.75], [138.97, -8.53]]]]}, "2014-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -8.53], [138.75, -8.0], [138.97, -7.47], [139.5, -7.25], [139.75, -7.35], [139.82, -7.32], [139.97, -6.97], [140.5, -6.75], [140.75, -6.85], [141.0, -6.75], [141.53, -6.97], [141.68, -7.32], [141.75, -7.35], [142.0, -7.25], [142.53, -7.47], [142.68, -7.82], [143.03, -7.97], [143.18, -8.32], [143.53, -8.47], [143.75, -9.0], [143.53, -9.53], [143.0, -9.75], [142.75, -9.65], [142.5, -9.75], [142.25, -9.65], [142.0, -9.75], [141.75, -9.65], [141.5, -9.75], [141.25, -9.65], [141.0, -9.75], [140.47, -9.53], [140.32, -9.18], [139.97, -9.03], [139.82, -8.68], [139.75, -8.65], [139.5, -8.75], [138.97, -8.53]]]]}, "2014-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -8.53], [138.75, -8.0], [138.97, -7.47], [139.5, -7.25], [139.75, -7.35], [139.82, -7.32], [139.97, -6.97], [140.5, -6.75], [140.75, -6.85], [141.0, -6.75], [141.53, -6.97], [141.68, -7.32], [141.75, -7.35], [142.0, -7.25], [142.53, -7.47], [142.68, -7.82], [143.03, -7.97], [143.18, -8.32], [143.53, -8.47], [143.75, -9.0], [143.53, -9.53], [143.0, -9.75], [142.75, -9.65], [142.5, -9.75], [142.25, -9.65], [142.0, -9.75], [141.75, -9.65], [141.5, -9.75], [141.25, -9.65], [141.0, -9.75], [140.47, -9.53], [140.32, -9.18], [139.97, -9.03], [139.82, -8.68], [139.75, -8.65], [139.5, -8.75], [138.97, -8.53]]]]}, "2014-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.75, -8.5], [139.97, -7.97], [140.32, -7.82], [140.47, -7.47], [141.0, -7.25], [141.25, -7.35], [141.5, -7.25], [141.75, -7.35], [142.0, -7.25], [142.53, -7.47], [142.68, -7.82], [143.03, -7.97], [143.18, -8.32], [143.53, -8.47], [143.75, -9.0], [143.53, -9.53], [143.0, -9.75], [142.75, -9.65], [142.5, -9.75], [142.25, -9.65], [142.0, -9.75], [141.75, -9.65], [141.5, -9.75], [141.25, -9.65], [141.0, -9.75], [140.47, -9.53], [140.32, -9.18], [139.97, -9.03], [139.75, -8.5]]]]}, "2014-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.0, -8.25], [143.53, -8.47], [143.75, -9.0], [143.53, -9.53], [143.0, -9.75], [142.47, -9.53], [142.25, -9.0], [142.47, -8.47], [143.0, -8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3434707498314538}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.401876389735425}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.96685801825157, 25.19838249754281, 24.736202959246498, 24.89026063689687, 25.054280937678755, 24.80435212225899]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.849215351103, 24.55894760238283, 23.678976411144106, 24.28928878805374, 24.703486206782145, 24.80435212225899]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": 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