{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:32.929569", "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": "2026-Aug-14_to_2026-Aug-20_158.0_-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": 2026080000413}, "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 14 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 20 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 129094.80967002662}, "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": ["N.Australia", "S.Pacific-Ocean"]}, "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": ["Coral Sea", "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": -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": 158.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "158.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 152.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 161.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[157.47, -13.97], [158.0, -13.75], [158.53, -13.97], [158.68, -14.32], [159.03, -14.47], [159.18, -14.82], [159.53, -14.97], [159.75, -15.5], [159.53, -16.03], [159.0, -16.25], [158.75, -16.15], [158.5, -16.25], [157.97, -16.03], [157.82, -15.68], [157.47, -15.53], [157.25, -15.0], [157.35, -14.75], [157.25, -14.5], [157.47, -13.97]]]]}, "2026-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[154.25, -12.0], [154.47, -11.47], [155.0, -11.25], [155.53, -11.47], [155.68, -11.82], [156.03, -11.97], [156.18, -12.32], [156.53, -12.47], [156.68, -12.82], [156.75, -12.85], [157.0, -12.75], [157.25, -12.85], [157.5, -12.75], [157.75, -12.85], [158.0, -12.75], [158.25, -12.85], [158.5, -12.75], [159.03, -12.97], [159.18, -13.32], [159.25, -13.35], [159.5, -13.25], [160.03, -13.47], [160.18, -13.82], [160.25, -13.85], [160.5, -13.75], [161.03, -13.97], [161.25, -14.5], [161.15, -14.75], [161.18, -14.82], [161.53, -14.97], [161.75, -15.5], [161.53, -16.03], [161.0, -16.25], [160.47, -16.03], [160.32, -15.68], [160.2, -15.63], [160.03, -16.03], [159.5, -16.25], [159.25, -16.15], [159.0, -16.25], [158.75, -16.15], [158.5, -16.25], [157.97, -16.03], [157.82, -15.68], [157.47, -15.53], [157.32, -15.18], [157.25, -15.15], [157.0, -15.25], [156.47, -15.03], [156.32, -14.68], [155.97, -14.53], [155.82, -14.18], [155.47, -14.03], [155.32, -13.68], [154.97, -13.53], [154.75, -13.0], [154.85, -12.75], [154.82, -12.68], [154.47, -12.53], [154.25, -12.0]]]]}, "2026-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[153.25, -11.5], [153.47, -10.97], [154.0, -10.75], [154.25, -10.85], [154.5, -10.75], [155.03, -10.97], [155.18, -11.32], [155.53, -11.47], [155.68, -11.82], [156.03, -11.97], [156.18, -12.32], [156.53, -12.47], [156.68, -12.82], [156.75, -12.85], [157.0, -12.75], [157.25, -12.85], [157.5, -12.75], [157.75, -12.85], [158.0, -12.75], [158.25, -12.85], [158.5, -12.75], [159.03, -12.97], [159.18, -13.32], [159.25, -13.35], [159.5, -13.25], [160.03, -13.47], [160.18, -13.82], [160.25, -13.85], [160.5, -13.75], [161.03, -13.97], [161.25, -14.5], [161.15, -14.75], [161.18, -14.82], [161.53, -14.97], [161.75, -15.5], [161.53, -16.03], [161.0, -16.25], [160.47, -16.03], [160.32, -15.68], [160.2, -15.63], [160.03, -16.03], [159.5, -16.25], [159.25, -16.15], [159.0, -16.25], [158.75, -16.15], [158.5, -16.25], [157.97, -16.03], [157.82, -15.68], [157.47, -15.53], [157.32, -15.18], [157.25, -15.15], [157.0, -15.25], [156.47, -15.03], [156.32, -14.68], [155.97, -14.53], [155.82, -14.18], [155.47, -14.03], [155.32, -13.68], [154.97, -13.53], [154.82, -13.18], [154.75, -13.15], [154.5, -13.25], [153.97, -13.03], [153.75, -12.5], [153.85, -12.25], [153.82, -12.18], [153.47, -12.03], [153.25, -11.5]]]]}, "2026-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[153.25, -11.5], [153.47, -10.97], [154.0, -10.75], [154.25, -10.85], [154.5, -10.75], [155.03, -10.97], [155.18, -11.32], [155.53, -11.47], [155.68, -11.82], [156.03, -11.97], [156.18, -12.32], [156.53, -12.47], [156.68, -12.82], [156.75, -12.85], [157.0, -12.75], [157.25, -12.85], [157.5, -12.75], [157.75, -12.85], [158.0, -12.75], [158.25, -12.85], [158.5, -12.75], [159.03, -12.97], [159.18, -13.32], [159.25, -13.35], [159.5, -13.25], [160.03, -13.47], [160.18, -13.82], [160.25, -13.85], [160.5, -13.75], [161.03, -13.97], [161.25, -14.5], [161.15, -14.75], [161.18, -14.82], [161.53, -14.97], [161.75, -15.5], [161.53, -16.03], [161.0, -16.25], [160.47, -16.03], [160.32, -15.68], [160.2, -15.63], [160.03, -16.03], [159.5, -16.25], [159.25, -16.15], [159.0, -16.25], [158.47, -16.03], [158.32, -15.68], [158.25, -15.65], [158.0, -15.75], [157.47, -15.53], [157.32, -15.18], [157.25, -15.15], [157.0, -15.25], [156.47, -15.03], [156.32, -14.68], [155.97, -14.53], [155.82, -14.18], [155.47, -14.03], [155.32, -13.68], [154.97, -13.53], [154.82, -13.18], [154.75, -13.15], [154.5, -13.25], [153.97, -13.03], [153.75, -12.5], [153.85, -12.25], [153.82, -12.18], [153.47, -12.03], [153.25, -11.5]]]]}, "2026-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[157.25, -15.0], [157.47, -14.47], [158.0, -14.25], [158.53, -14.47], [158.7, -14.87], [159.0, -14.75], [159.25, -14.85], [159.5, -14.75], [160.03, -14.97], [160.25, -15.5], [160.03, -16.03], [159.5, -16.25], [159.25, -16.15], [159.0, -16.25], [158.47, -16.03], [158.3, -15.63], [158.0, -15.75], [157.47, -15.53], [157.25, -15.0]]], [[[152.47, -10.97], [153.0, -10.75], [153.25, -10.85], [153.5, -10.75], [153.75, -10.85], [154.0, -10.75], [154.25, -10.85], [154.5, -10.75], [155.03, -10.97], [155.18, -11.32], [155.53, -11.47], [155.68, -11.82], [156.03, -11.97], [156.25, -12.5], [156.03, -13.03], [155.5, -13.25], [155.25, -13.15], [155.0, -13.25], [154.75, -13.15], [154.5, -13.25], [154.0, -13.04], [153.5, -13.25], [152.97, -13.03], [152.75, -12.5], [152.85, -12.25], [152.82, -12.18], [152.47, -12.03], [152.25, -11.5], [152.47, -10.97]]]]}, "2026-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[152.25, -11.5], [152.47, -10.97], [153.0, -10.75], [153.25, -10.85], [153.5, -10.75], [153.75, -10.85], [154.0, -10.75], [154.25, -10.85], [154.5, -10.75], [155.03, -10.97], [155.25, -11.5], [155.15, -11.75], [155.25, -12.0], [155.15, -12.25], [155.25, -12.5], [155.03, -13.03], [154.5, -13.25], [154.0, -13.04], [153.5, -13.25], [152.97, -13.03], [152.75, -12.5], [152.85, -12.25], [152.82, -12.18], [152.47, -12.03], [152.25, -11.5]]]]}, "2026-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[152.25, -11.5], [152.47, -10.97], [153.0, -10.75], [153.25, -10.85], [153.5, -10.75], [154.03, -10.97], [154.25, -11.5], [154.15, -11.75], [154.2, -11.87], [154.5, -11.75], [155.03, -11.97], [155.25, -12.5], [155.03, -13.03], [154.5, -13.25], [154.0, -13.04], [153.5, -13.25], [152.97, -13.03], [152.75, -12.5], [152.85, -12.25], [152.82, -12.18], [152.47, -12.03], [152.25, -11.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8457292916122583}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1921734624252323}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.536389668782533, 23.74147687425807, 23.662910259279442, 23.912965526915457, 24.045203690301832, 24.402059173584007, 24.302817026774164]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.299068705240927, 22.85660832722982, 23.011052703857445, 23.174549357096396, 22.933962758382165, 24.158478037516318, 24.03831507364913]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.014222669408832, -1.233510130357933, -1.3635007047389827, -1.1169809500589616, -1.1139344095129462, -0.9370501534077178, -0.9514121600180943]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.054326907719144, -1.506101540395889, -1.8457292916122583, -1.2885975211264054, -1.3998659586717395, -1.0129412298350644, -1.091488050593398]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2779600127917319, -1.6389362983585696, -1.8296538548213817, -1.4694410796865913, -1.586937959023372, -1.4498314522887954, -1.45111013663023]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3184976500796044, -2.0442557690243333, -2.5140527194035127, -1.6529283835550037, -2.1540682814151833, -1.5744161587208678, -1.6210648408326407]}}