{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:56.875452", "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-Jul-22_to_2011-Jul-27_122.0_14.5"}, "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": 2011070001214}, "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": "July 22 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 27 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": 69126.77628189861}, "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": ["Philippines"]}, "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": ["Philippine 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": 14.5}, "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": 122.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "122.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.75}, "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": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.97, 12.47], [121.75, 13.0], [121.97, 13.53], [122.5, 13.75], [123.03, 13.53], [123.25, 13.0], [123.03, 12.47], [122.5, 12.25], [121.97, 12.47]]], [[[121.47, 13.97], [121.25, 14.5], [121.47, 15.03], [122.0, 15.25], [122.53, 15.03], [122.75, 14.5], [122.53, 13.97], [122.0, 13.75], [121.47, 13.97]]]]}, "2011-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.75, 13.0], [121.97, 13.53], [122.5, 13.75], [122.75, 13.65], [123.0, 13.75], [123.3, 13.63], [123.47, 14.03], [124.0, 14.25], [124.5, 14.04], [125.0, 14.25], [125.53, 14.03], [125.68, 13.68], [126.03, 13.53], [126.25, 13.0], [126.03, 12.47], [125.5, 12.25], [125.25, 12.35], [125.0, 12.25], [124.47, 12.47], [124.3, 12.87], [124.0, 12.75], [123.7, 12.87], [123.53, 12.47], [123.0, 12.25], [122.75, 12.35], [122.5, 12.25], [121.97, 12.47], [121.75, 13.0]]], [[[121.47, 13.97], [121.25, 14.5], [121.47, 15.03], [122.0, 15.25], [122.53, 15.03], [122.75, 14.5], [122.53, 13.97], [122.0, 13.75], [121.47, 13.97]]]]}, "2011-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, 15.53], [122.0, 15.75], [122.25, 15.65], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [124.03, 15.03], [124.25, 14.5], [124.15, 14.25], [124.18, 14.18], [124.25, 14.15], [124.5, 14.25], [124.75, 14.15], [125.0, 14.25], [125.53, 14.03], [125.68, 13.68], [126.03, 13.53], [126.25, 13.0], [126.03, 12.47], [125.68, 12.32], [125.65, 12.25], [125.75, 12.0], [125.65, 11.75], [125.75, 11.5], [125.53, 10.97], [125.0, 10.75], [124.47, 10.97], [124.25, 11.5], [124.35, 11.75], [124.32, 11.82], [123.97, 11.97], [123.82, 12.32], [123.75, 12.35], [123.5, 12.25], [123.25, 12.35], [123.0, 12.25], [122.75, 12.35], [122.5, 12.25], [121.97, 12.47], [121.75, 13.0], [121.97, 13.53], [122.5, 13.75], [122.25, 13.85], [122.0, 13.75], [121.47, 13.97], [121.25, 14.5], [121.35, 14.75], [121.25, 15.0], [121.47, 15.53]], [[122.75, 13.65], [122.88, 13.7], [122.82, 13.82], [122.75, 13.85], [122.5, 13.75], [122.75, 13.65]]]]}, "2011-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, 15.53], [122.0, 15.75], [122.25, 15.65], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [124.03, 15.03], [124.25, 14.5], [124.15, 14.25], [124.18, 14.18], [124.25, 14.15], [124.5, 14.25], [124.75, 14.15], [125.0, 14.25], [125.53, 14.03], [125.68, 13.68], [126.03, 13.53], [126.25, 13.0], [126.03, 12.47], [125.68, 12.32], [125.65, 12.25], [125.75, 12.0], [125.65, 11.75], [125.75, 11.5], [125.53, 10.97], [125.0, 10.75], [124.47, 10.97], [124.25, 11.5], [124.35, 11.75], [124.32, 11.82], [123.97, 11.97], [123.82, 12.32], [123.75, 12.35], [123.5, 12.25], [123.25, 12.35], [123.0, 12.25], [122.7, 12.37], [122.53, 11.97], [122.0, 11.75], [121.47, 11.97], [121.25, 12.5], [121.47, 13.03], [122.0, 13.25], [122.3, 13.13], [122.35, 13.25], [122.25, 13.5], [122.38, 13.8], [122.25, 13.85], [122.0, 13.75], [121.47, 13.97], [121.25, 14.5], [121.35, 14.75], [121.25, 15.0], [121.47, 15.53]]]]}, "2011-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, 15.53], [122.0, 15.75], [122.25, 15.65], [122.5, 15.75], [122.75, 15.65], [123.0, 15.75], [123.53, 15.53], [123.68, 15.18], [124.03, 15.03], [124.25, 14.5], [124.15, 14.25], [124.2, 14.13], [124.5, 14.25], [125.03, 14.03], [125.25, 13.5], [125.13, 13.2], [125.53, 13.03], [125.75, 12.5], [125.65, 12.25], [125.75, 12.0], [125.65, 11.75], [125.75, 11.5], [125.53, 10.97], [125.0, 10.75], [124.47, 10.97], [124.25, 11.5], [124.35, 11.75], [124.32, 11.82], [123.97, 11.97], [123.82, 12.32], [123.75, 12.35], [123.5, 12.25], [122.97, 12.47], [122.82, 12.82], [122.57, 12.93], [122.75, 12.5], [122.53, 11.97], [122.0, 11.75], [121.47, 11.97], [121.25, 12.5], [121.47, 13.03], [122.0, 13.25], [122.43, 13.07], [122.25, 13.5], [122.38, 13.8], [122.25, 13.85], [122.0, 13.75], [121.47, 13.97], [121.25, 14.5], [121.35, 14.75], [121.25, 15.0], [121.47, 15.53]]]]}, "2011-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, 14.03], [123.0, 14.25], [123.53, 14.03], [123.75, 13.5], [123.53, 12.97], [123.0, 12.75], [122.57, 12.93], [122.75, 12.5], [122.53, 11.97], [122.0, 11.75], [121.47, 11.97], [121.25, 12.5], [121.47, 13.03], [122.0, 13.25], [122.43, 13.07], [122.25, 13.5], [122.47, 14.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3761765378394557}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2762508290201862}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.715659071656148, 26.58344784291512, 26.400418653659415, 26.06574077337666, 26.210863692892474, 26.141049378722983]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.62065662157039, 26.24983680606391, 24.800489795742976, 24.474520248115084, 25.239645395932826, 25.770543750732315]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9970782493646766, -0.9561455212181856, -1.146116031767568, -1.4723288563961423, -1.3498782047385756, -1.2595163623933558]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0906596111672116, -1.019954107739295, -2.024698852566246, -2.3761765378394557, -2.0173374930560044, -1.537571617984554]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5169792709825973, -1.5539374813758502, -1.7097312697141345, -2.155342377666569, -1.9190437712705763, -1.7221954761124014]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5632632694449282, -1.6895251635789232, -2.3273912391956517, -2.85013753964046, -2.769006049297409, -1.9286339321935093]}}