{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-03 19:34:05.943093", "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-Jul-22_to_2026-Jul-26_160.5_-12.0"}, "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": 2026070000747}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "July 22 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 26 2026"}, "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": 75662.34988013643}, "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": ["Solomon Islands"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "S.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": -12.0}, "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": 160.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "160.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 157.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 162.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.97, -13.03], [156.75, -12.5], [156.97, -11.97], [157.5, -11.75], [157.75, -11.85], [158.0, -11.75], [158.25, -11.85], [158.32, -11.82], [158.47, -11.47], [159.0, -11.25], [159.25, -11.35], [159.32, -11.32], [159.47, -10.97], [159.82, -10.82], [159.97, -10.47], [160.32, -10.32], [160.35, -10.25], [160.3, -10.13], [160.0, -10.25], [159.47, -10.03], [159.25, -9.5], [159.47, -8.97], [160.0, -8.75], [160.53, -8.97], [160.7, -9.37], [161.0, -9.25], [161.53, -9.47], [161.75, -10.0], [161.65, -10.25], [161.75, -10.5], [161.65, -10.75], [161.75, -11.0], [161.53, -11.53], [161.18, -11.68], [161.15, -11.75], [161.25, -12.0], [161.03, -12.53], [160.68, -12.68], [160.53, -13.03], [160.0, -13.25], [159.75, -13.15], [159.5, -13.25], [159.25, -13.15], [159.0, -13.25], [158.75, -13.15], [158.5, -13.25], [158.25, -13.15], [158.0, -13.25], [157.75, -13.15], [157.5, -13.25], [156.97, -13.03]]]]}, "2026-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.97, -13.03], [156.75, -12.5], [156.97, -11.97], [157.5, -11.75], [157.75, -11.85], [158.0, -11.75], [158.25, -11.85], [158.32, -11.82], [158.47, -11.47], [159.0, -11.25], [159.25, -11.35], [159.32, -11.32], [159.47, -10.97], [159.82, -10.82], [159.97, -10.47], [160.32, -10.32], [160.35, -10.25], [160.3, -10.13], [160.0, -10.25], [159.47, -10.03], [159.25, -9.5], [159.47, -8.97], [160.0, -8.75], [160.53, -8.97], [160.7, -9.37], [161.0, -9.25], [161.53, -9.47], [161.75, -10.0], [161.65, -10.25], [161.75, -10.5], [161.65, -10.75], [161.68, -10.82], [162.03, -10.97], [162.25, -11.5], [162.15, -11.75], [162.18, -11.82], [162.53, -11.97], [162.75, -12.5], [162.53, -13.03], [162.0, -13.25], [161.75, -13.15], [161.5, -13.25], [161.25, -13.15], [161.0, -13.25], [160.5, -13.04], [160.0, -13.25], [159.75, -13.15], [159.5, -13.25], [159.25, -13.15], [159.0, -13.25], [158.75, -13.15], [158.5, -13.25], [158.25, -13.15], [158.0, -13.25], [157.75, -13.15], [157.5, -13.25], [156.97, -13.03]]]]}, "2026-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.97, -13.03], [156.75, -12.5], [156.97, -11.97], [157.5, -11.75], [157.75, -11.85], [158.0, -11.75], [158.25, -11.85], [158.32, -11.82], [158.47, -11.47], [159.0, -11.25], [159.25, -11.35], [159.32, -11.32], [159.47, -10.97], [159.82, -10.82], [159.96, -10.5], [159.82, -10.18], [159.47, -10.03], [159.25, -9.5], [159.47, -8.97], [160.0, -8.75], [160.53, -8.97], [160.68, -9.32], [160.75, -9.35], [161.0, -9.25], [161.53, -9.47], [161.75, -10.0], [161.65, -10.25], [161.75, -10.5], [161.65, -10.75], [161.68, -10.82], [162.03, -10.97], [162.25, -11.5], [162.15, -11.75], [162.18, -11.82], [162.53, -11.97], [162.75, -12.5], [162.53, -13.03], [162.0, -13.25], [161.75, -13.15], [161.5, -13.25], [161.25, -13.15], [161.0, -13.25], [160.5, -13.04], [160.0, -13.25], [159.75, -13.15], [159.5, -13.25], [159.25, -13.15], [159.0, -13.25], [158.75, -13.15], [158.5, -13.25], [158.25, -13.15], [158.0, -13.25], [157.75, -13.15], [157.5, -13.25], [156.97, -13.03]]]]}, "2026-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[159.47, -10.97], [159.82, -10.82], [159.96, -10.5], [159.75, -10.0], [159.97, -9.47], [160.5, -9.25], [161.03, -9.47], [161.18, -9.82], [161.53, -9.97], [161.75, -10.5], [161.65, -10.75], [161.68, -10.82], [162.03, -10.97], [162.25, -11.5], [162.15, -11.75], [162.18, -11.82], [162.53, -11.97], [162.75, -12.5], [162.53, -13.03], [162.0, -13.25], [161.75, -13.15], [161.5, -13.25], [161.25, -13.15], [161.0, -13.25], [160.47, -13.03], [160.32, -12.68], [160.25, -12.65], [160.0, -12.75], [159.47, -12.53], [159.25, -12.0], [159.35, -11.75], [159.25, -11.5], [159.47, -10.97]]]]}, "2026-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[160.5, -9.25], [161.03, -9.47], [161.25, -10.0], [161.03, -10.53], [160.5, -10.75], [159.97, -10.53], [159.75, -10.0], [159.97, -9.47], [160.5, -9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.7621443391642515}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.220118555182328}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.706370215322465, 24.63436236911349, 24.745866190592437, 25.178347778320415, 24.891267395019554]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.45166931152346, 23.491455332438193, 23.595674133300804, 24.60780741373702, 24.891267395019554]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2791961367355364, -1.36762475277596, -1.2292243950420287, -0.9347453898632732, -0.7286024098239068]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7621443391642515, -1.6813611887151296, -1.6325967253407612, -1.2088402067906259, -0.7286024098239068]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.4142884475783006, -2.7127225688651873, -2.503109004799007, -1.9253945693943768, -1.3991211475131335]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.3126036380224444, -3.400255171082758, -3.432832508221803, -2.5300455125658123, -1.3991211475131335]}}