{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:52.360936", "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": "2010-Jan-15_to_2010-Jan-20_123.5_-10.5"}, "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": 2010010000543}, "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": "January 15 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 20 2010"}, "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": 66957.27582882377}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia", "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": ["Indian Ocean", "Savu Sea", "Timor 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": -10.5}, "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": 123.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "123.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 124.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -9.47], [123.0, -9.25], [123.25, -9.35], [123.5, -9.25], [124.03, -9.47], [124.18, -9.82], [124.53, -9.97], [124.75, -10.5], [124.53, -11.03], [124.0, -11.25], [123.75, -11.15], [123.68, -11.18], [123.53, -11.53], [123.0, -11.75], [122.47, -11.53], [122.25, -11.0], [122.46, -10.5], [122.25, -10.0], [122.47, -9.47]]]]}, "2010-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.75, -9.5], [120.97, -8.97], [121.5, -8.75], [122.03, -8.97], [122.18, -9.32], [122.25, -9.35], [122.5, -9.25], [122.75, -9.35], [122.82, -9.32], [122.85, -9.25], [122.75, -9.0], [122.97, -8.47], [123.5, -8.25], [123.75, -8.35], [124.0, -8.25], [124.53, -8.47], [124.68, -8.82], [125.03, -8.97], [125.25, -9.5], [125.15, -9.75], [125.25, -10.0], [125.03, -10.53], [124.68, -10.68], [124.53, -11.03], [124.0, -11.25], [123.75, -11.15], [123.68, -11.18], [123.53, -11.53], [123.0, -11.75], [122.47, -11.53], [122.32, -11.18], [121.97, -11.03], [121.82, -10.68], [121.47, -10.53], [121.32, -10.18], [120.97, -10.03], [120.75, -9.5]]]]}, "2010-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.75, -9.5], [120.97, -8.97], [121.5, -8.75], [121.75, -8.85], [122.0, -8.75], [122.5, -8.96], [122.82, -8.82], [122.97, -8.47], [123.5, -8.25], [123.75, -8.35], [124.0, -8.25], [124.53, -8.47], [124.68, -8.82], [125.03, -8.97], [125.25, -9.5], [125.15, -9.75], [125.25, -10.0], [125.03, -10.53], [124.68, -10.68], [124.53, -11.03], [124.18, -11.18], [124.03, -11.53], [123.5, -11.75], [123.25, -11.65], [123.0, -11.75], [122.75, -11.65], [122.5, -11.75], [122.25, -11.65], [122.0, -11.75], [121.47, -11.53], [121.25, -11.0], [121.46, -10.5], [121.32, -10.18], [120.97, -10.03], [120.75, -9.5]]]]}, "2010-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.75, -9.5], [120.97, -8.97], [121.5, -8.75], [121.75, -8.85], [122.0, -8.75], [122.5, -8.96], [122.82, -8.82], [122.97, -8.47], [123.5, -8.25], [123.75, -8.35], [124.0, -8.25], [124.53, -8.47], [124.68, -8.82], [125.03, -8.97], [125.25, -9.5], [125.15, -9.75], [125.25, -10.0], [125.03, -10.53], [124.68, -10.68], [124.53, -11.03], [124.18, -11.18], [124.03, -11.53], [123.5, -11.75], [123.25, -11.65], [123.0, -11.75], [122.75, -11.65], [122.5, -11.75], [122.25, -11.65], [122.0, -11.75], [121.47, -11.53], [121.25, -11.0], [121.46, -10.5], [121.32, -10.18], [120.97, -10.03], [120.75, -9.5]]]]}, "2010-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.75, -9.5], [120.97, -8.97], [121.5, -8.75], [121.75, -8.85], [122.0, -8.75], [122.5, -8.96], [123.0, -8.75], [123.25, -8.85], [123.5, -8.75], [123.75, -8.85], [124.0, -8.75], [124.25, -8.85], [124.5, -8.75], [125.03, -8.97], [125.25, -9.5], [125.15, -9.75], [125.25, -10.0], [125.03, -10.53], [124.5, -10.75], [124.2, -10.63], [124.15, -10.75], [124.25, -11.0], [124.03, -11.53], [123.5, -11.75], [123.25, -11.65], [123.0, -11.75], [122.75, -11.65], [122.5, -11.75], [122.25, -11.65], [122.0, -11.75], [121.47, -11.53], [121.25, -11.0], [121.46, -10.5], [121.32, -10.18], [120.97, -10.03], [120.75, -9.5]], [[122.7, -10.13], [122.63, -10.3], [122.75, -10.35], [122.82, -10.32], [122.88, -10.2], [122.7, -10.13]]]]}, "2010-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, -10.53], [121.25, -10.0], [121.47, -9.47], [122.0, -9.25], [122.53, -9.47], [122.75, -10.0], [122.57, -10.43], [122.82, -10.32], [122.97, -9.97], [123.5, -9.75], [124.03, -9.97], [124.25, -10.5], [124.03, -11.03], [123.68, -11.18], [123.53, -11.53], [123.0, -11.75], [122.47, -11.53], [122.25, -11.0], [122.43, -10.57], [122.0, -10.75], [121.47, -10.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3686459837011853}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1619389025552127}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.43295846853846, 25.82448472218306, 25.73577136184838, 25.743411667047894, 25.867981777956345, 26.398924755770338]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.891021376063748, 23.324033116293833, 22.729823499554527, 22.66057937650254, 23.26531138449002, 26.22678748647087]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.02604146960756, -1.090836949462765, -1.2804601680465815, -1.2340035931617799, -1.0264437708865182, -0.9808609175046475]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1653265292577544, -1.6790017851856192, -2.3686459837011853, -1.9296952708402841, -1.367292591766784, -1.0749852296924587]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4013255451580158, -1.5366705385021155, -1.830159093821033, -1.8328840580351027, -1.5465526707620894, -1.438694593999082]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6895037810656037, -1.8924307543090861, -2.6804470225265993, -2.4671677521551874, -1.8181403260703528, -1.554666630083871]}}