{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:56.031466", "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-Mar-11_to_2011-Mar-15_147.5_-8.0"}, "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": 2011030000647}, "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 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 15 2011"}, "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": 64339.85324419668}, "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": ["Solomon 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": -8.0}, "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": 147.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 149.25}, "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": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.46, -6.5], [146.25, -6.0], [146.47, -5.47], [147.0, -5.25], [147.53, -5.47], [147.68, -5.82], [148.0, -5.96], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.04, -7.0], [149.25, -7.5], [149.15, -7.75], [149.25, -8.0], [149.03, -8.53], [148.5, -8.75], [148.0, -8.54], [147.5, -8.75], [146.97, -8.53], [146.82, -8.18], [146.47, -8.03], [146.25, -7.5], [146.35, -7.25], [146.25, -7.0], [146.46, -6.5]]]]}, "2011-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.46, -6.5], [146.25, -6.0], [146.47, -5.47], [147.0, -5.25], [147.53, -5.47], [147.68, -5.82], [148.0, -5.96], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.15, -6.75], [149.25, -7.0], [149.15, -7.25], [149.18, -7.32], [149.53, -7.47], [149.75, -8.0], [149.65, -8.25], [149.75, -8.5], [149.65, -8.75], [149.75, -9.0], [149.53, -9.53], [149.0, -9.75], [148.75, -9.65], [148.5, -9.75], [147.97, -9.53], [147.75, -9.0], [147.85, -8.75], [147.82, -8.68], [147.75, -8.65], [147.5, -8.75], [146.97, -8.53], [146.82, -8.18], [146.47, -8.03], [146.25, -7.5], [146.35, -7.25], [146.25, -7.0], [146.46, -6.5]]]]}, "2011-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.35, -6.75], [146.25, -6.5], [146.35, -6.25], [146.25, -6.0], [146.47, -5.47], [147.0, -5.25], [147.53, -5.47], [147.68, -5.82], [148.0, -5.96], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.15, -6.75], [149.25, -7.0], [149.15, -7.25], [149.18, -7.32], [149.53, -7.47], [149.75, -8.0], [149.65, -8.25], [149.75, -8.5], [149.65, -8.75], [149.75, -9.0], [149.53, -9.53], [149.0, -9.75], [148.75, -9.65], [148.5, -9.75], [147.97, -9.53], [147.82, -9.18], [147.47, -9.03], [147.32, -8.68], [146.97, -8.53], [146.82, -8.18], [146.47, -8.03], [146.25, -7.5], [146.35, -7.25], [146.25, -7.0], [146.35, -6.75]]]]}, "2011-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.35, -6.75], [146.25, -6.5], [146.47, -5.97], [147.0, -5.75], [147.53, -5.97], [147.68, -6.32], [147.75, -6.35], [148.0, -6.25], [148.25, -6.35], [148.5, -6.25], [149.03, -6.47], [149.25, -7.0], [149.15, -7.25], [149.18, -7.32], [149.53, -7.47], [149.75, -8.0], [149.65, -8.25], [149.75, -8.5], [149.65, -8.75], [149.75, -9.0], [149.53, -9.53], [149.0, -9.75], [148.75, -9.65], [148.5, -9.75], [147.97, -9.53], [147.82, -9.18], [147.47, -9.03], [147.32, -8.68], [146.97, -8.53], [146.82, -8.18], [146.47, -8.03], [146.25, -7.5], [146.35, -7.25], [146.25, -7.0], [146.35, -6.75]]]]}, "2011-03-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.35, -6.75], [146.25, -6.5], [146.47, -5.97], [147.0, -5.75], [147.53, -5.97], [147.75, -6.5], [147.65, -6.75], [147.75, -7.0], [147.65, -7.25], [147.68, -7.32], [148.03, -7.47], [148.18, -7.82], [148.53, -7.97], [148.75, -8.5], [148.53, -9.03], [148.0, -9.25], [147.47, -9.03], [147.32, -8.68], [146.97, -8.53], [146.82, -8.18], [146.47, -8.03], [146.25, -7.5], [146.35, -7.25], [146.25, -7.0], [146.35, -6.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.735293581519727}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.0722983612842028}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.691911976480128, 24.90727750046301, 24.580724436183004, 24.91641773546428, 21.77727016418538]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.095100344536377, 19.87189473035886, 19.244539112352356, 19.748500608918505, 19.026742357969113]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9181126286400487, -1.0088956569090957, -1.1102565752034042, -1.079299170730672, -1.4061355442011518]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1852531671494262, -1.171602131878899, -1.5814504402081866, -1.586414975241837, -1.735293581519727]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3951069875932731, -1.5852898112625664, -1.7115616552134065, -1.7063014177815878, -1.9960916055145006]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.612937007986706, -2.1685040041646992, -2.2638615657118106, -2.2063453428635347, -2.527319519040096]}}