{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:47.047372", "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-Feb-23_to_2011-Feb-28_148.5_-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": 2011020001106}, "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": "February 23 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 28 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": 76528.9524476243}, "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": 148.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.5\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": 150.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -7.47], [148.5, -7.25], [148.75, -7.35], [149.0, -7.25], [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], [148.47, -9.53], [148.32, -9.18], [147.97, -9.03], [147.75, -8.5], [147.85, -8.25], [147.75, -8.0], [147.97, -7.47]]]]}, "2011-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.47, -6.47], [147.82, -6.32], [147.97, -5.97], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.15, -6.75], [149.18, -6.82], [149.53, -6.97], [149.75, -7.5], [149.65, -7.75], [149.68, -7.82], [149.75, -7.85], [150.0, -7.75], [150.53, -7.97], [150.75, -8.5], [150.53, -9.03], [150.18, -9.18], [150.03, -9.53], [149.5, -9.75], [149.25, -9.65], [149.0, -9.75], [148.47, -9.53], [148.32, -9.18], [147.97, -9.03], [147.75, -8.5], [147.85, -8.25], [147.82, -8.18], [147.47, -8.03], [147.25, -7.5], [147.35, -7.25], [147.25, -7.0], [147.47, -6.47]]]]}, "2011-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.47, -7.03], [146.25, -6.5], [146.47, -5.97], [147.0, -5.75], [147.25, -5.85], [147.5, -5.75], [148.0, -5.96], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.15, -6.75], [149.18, -6.82], [149.53, -6.97], [149.75, -7.5], [149.65, -7.75], [149.68, -7.82], [149.75, -7.85], [150.0, -7.75], [150.53, -7.97], [150.75, -8.5], [150.53, -9.03], [150.18, -9.18], [150.03, -9.53], [149.68, -9.68], [149.53, -10.03], [149.0, -10.25], [148.75, -10.15], [148.5, -10.25], [147.97, -10.03], [147.82, -9.68], [147.47, -9.53], [147.25, -9.0], [147.35, -8.75], [147.25, -8.5], [147.35, -8.25], [147.25, -8.0], [147.35, -7.75], [147.25, -7.5], [147.35, -7.25], [147.32, -7.18], [147.25, -7.15], [147.0, -7.25], [146.47, -7.03]]]]}, "2011-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.47, -5.97], [147.0, -5.75], [147.25, -5.85], [147.5, -5.75], [147.75, -5.85], [148.0, -5.75], [148.25, -5.85], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.15, -6.75], [149.18, -6.82], [149.53, -6.97], [149.75, -7.5], [149.65, -7.75], [149.68, -7.82], [149.75, -7.85], [150.0, -7.75], [150.53, -7.97], [150.75, -8.5], [150.53, -9.03], [150.18, -9.18], [150.03, -9.53], [149.68, -9.68], [149.53, -10.03], [149.0, -10.25], [148.75, -10.15], [148.5, -10.25], [147.97, -10.03], [147.82, -9.68], [147.47, -9.53], [147.25, -9.0], [147.35, -8.75], [147.25, -8.5], [147.35, -8.25], [147.25, -8.0], [147.35, -7.75], [147.32, -7.68], [147.25, -7.65], [147.0, -7.75], [146.47, -7.53], [146.25, -7.0], [146.35, -6.75], [146.25, -6.5], [146.47, -5.97]]]]}, "2011-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.47, -5.97], [147.0, -5.75], [147.25, -5.85], [147.5, -5.75], [147.75, -5.85], [148.0, -5.75], [148.25, -5.85], [148.5, -5.75], [149.03, -5.97], [149.25, -6.5], [149.15, -6.75], [149.18, -6.82], [149.53, -6.97], [149.75, -7.5], [149.65, -7.75], [149.68, -7.82], [149.75, -7.85], [150.0, -7.75], [150.53, -7.97], [150.75, -8.5], [150.53, -9.03], [150.18, -9.18], [150.03, -9.53], [149.68, 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duration", "value": -1.1122831635539303}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.347517860207404, 26.379626697737933, 25.239319452604263, 25.063655061921963, 24.877046097016205, 24.637068161769378]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.76866338210999, 25.769380076457367, 19.716309927302063, 19.736442523057747, 18.839857894596946, 19.767651304180674]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9108206844137043, -0.9761826670811696, -0.9033688893429868, -1.1636967923727206, -1.374406723257266, -1.0463638967354085]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.01190390278947, -1.344878645510903, -1.5157446952843543, -1.508915395906854, -2.08761167381914, -1.2016482567358935]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6780885413363784, -1.805519876027786, -1.5600059491141745, -2.048101917760876, -2.4225724504888375, -1.7255840039613353]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.938144732300934, -2.4742580421686737, -1.9798480172097335, -2.6694456882413533, -3.1088807527928357, -1.9782600412938722]}}