{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:11.056221", "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": "2022-Aug-10_to_2022-Aug-13_126.5_-23.0"}, "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": 2022080000490}, "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 10 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 339606.8120414859}, "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": ["Australia"]}, "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": []}, "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": -23.0}, "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": 126.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 131.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[121.5, -20.25], [121.75, -20.35], [122.0, -20.25], [122.25, -20.35], [122.5, -20.25], [122.75, -20.35], [123.0, -20.25], [123.53, -20.47], [123.68, -20.82], [123.75, -20.85], [123.82, -20.82], [123.97, -20.47], [124.5, -20.25], [125.03, -20.47], [125.18, -20.82], [125.25, -20.85], [125.5, -20.75], [125.75, -20.85], [126.0, -20.75], [126.53, -20.97], [126.68, -21.32], [127.03, -21.47], [127.18, -21.82], [127.25, -21.85], [127.5, -21.75], [127.75, -21.85], [128.0, -21.75], [128.25, -21.85], [128.5, -21.75], [128.75, -21.85], [129.0, -21.75], [129.25, -21.85], [129.5, -21.75], [130.03, -21.97], [130.18, -22.32], [130.25, -22.35], [130.5, -22.25], [131.03, -22.47], [131.18, -22.82], [131.53, -22.97], [131.68, -23.32], [132.03, -23.47], [132.25, -24.0], [132.15, -24.25], [132.25, -24.5], [132.15, -24.75], [132.25, -25.0], [132.03, -25.53], [131.5, -25.75], [131.25, -25.65], [131.0, -25.75], [130.75, -25.65], [130.68, -25.68], [130.53, -26.03], [130.0, -26.25], [129.75, -26.15], [129.68, -26.18], [129.53, -26.53], [129.0, -26.75], [128.7, -26.62], [128.65, -26.75], [128.75, -27.0], [128.53, -27.53], [128.0, -27.75], [127.75, -27.65], [127.5, -27.75], [127.25, -27.65], [127.0, -27.75], [126.75, -27.65], [126.68, -27.68], [126.53, -28.03], [126.0, -28.25], [125.47, -28.03], [125.25, -27.5], [125.47, -26.97], [125.82, -26.82], [125.85, -26.75], [125.75, -26.5], [125.85, -26.25], [125.75, -26.0], [125.85, -25.75], [125.75, -25.5], [125.96, -25.0], [125.82, -24.68], [125.75, -24.65], [125.5, -24.75], [125.25, -24.65], [125.0, -24.75], [124.75, -24.65], [124.5, -24.75], [123.97, -24.53], [123.82, -24.18], [123.47, -24.03], [123.32, -23.68], [122.97, -23.53], [122.82, -23.18], [122.47, -23.03], [122.32, -22.68], [121.97, -22.53], [121.82, -22.18], [121.47, -22.03], [121.32, -21.68], [120.97, -21.53], [120.75, -21.0], [120.97, -20.47], [121.5, -20.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -21.53], [120.75, -21.0], [120.97, -20.47], [121.5, -20.25], [121.75, -20.35], [122.0, -20.25], [122.25, -20.35], [122.5, -20.25], [122.75, -20.35], [123.0, -20.25], [123.53, -20.47], [123.68, -20.82], [123.75, -20.85], [123.82, -20.82], [123.97, -20.47], [124.5, -20.25], [125.03, -20.47], [125.18, -20.82], [125.25, -20.85], [125.5, -20.75], [125.75, -20.85], [126.0, -20.75], [126.53, -20.97], [126.68, -21.32], [127.03, -21.47], [127.18, -21.82], [127.25, -21.85], [127.5, -21.75], [128.03, -21.97], [128.18, -22.32], [128.53, -22.47], [128.68, -22.82], [128.75, -22.85], [129.0, -22.75], [129.53, -22.97], [129.75, -23.5], [129.65, -23.75], [129.68, -23.82], [130.03, -23.97], [130.25, -24.5], [130.15, -24.75], [130.18, -24.82], [130.53, -24.97], [130.75, -25.5], [130.53, -26.03], [130.0, -26.25], [129.75, -26.15], [129.68, -26.18], [129.53, -26.53], [129.0, -26.75], [128.7, -26.62], [128.65, -26.75], [128.75, -27.0], [128.53, -27.53], [128.0, -27.75], [127.75, -27.65], [127.5, -27.75], [127.25, -27.65], [127.0, -27.75], [126.75, -27.65], [126.68, -27.68], [126.53, -28.03], [126.0, -28.25], [125.47, -28.03], [125.25, -27.5], [125.47, -26.97], [125.82, -26.82], [125.85, -26.75], [125.75, -26.5], [125.85, -26.25], [125.75, -26.0], [125.85, -25.75], [125.75, -25.5], [125.96, -25.0], [125.82, -24.68], [125.75, -24.65], [125.5, -24.75], [125.25, -24.65], [125.0, -24.75], [124.75, -24.65], [124.5, -24.75], [123.97, -24.53], [123.82, -24.18], [123.47, -24.03], [123.32, -23.68], [122.97, -23.53], [122.82, -23.18], [122.47, -23.03], [122.32, -22.68], [121.97, -22.53], [121.82, -22.18], [121.47, -22.03], [121.32, -21.68], [120.97, -21.53]]]]}, "2022-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -21.53], [120.75, -21.0], [120.97, -20.47], [121.5, -20.25], [121.75, -20.35], [122.0, -20.25], [122.25, -20.35], [122.5, -20.25], [122.75, -20.35], [123.0, -20.25], [123.53, -20.47], [123.68, -20.82], [123.75, -20.85], [123.82, -20.82], [123.97, -20.47], [124.5, -20.25], [125.03, -20.47], [125.18, -20.82], [125.25, -20.85], [125.5, -20.75], [125.75, -20.85], [126.0, -20.75], [126.53, -20.97], [126.68, -21.32], [127.03, -21.47], [127.18, -21.82], [127.25, -21.85], [127.5, -21.75], [127.75, -21.85], [128.0, -21.75], [128.25, -21.85], [128.5, -21.75], [128.75, -21.85], [129.0, -21.75], [129.25, -21.85], [129.5, -21.75], [130.03, -21.97], [130.18, -22.32], [130.25, -22.35], [130.5, -22.25], [131.03, -22.47], [131.18, -22.82], [131.53, -22.97], [131.68, -23.32], [132.03, -23.47], [132.25, -24.0], [132.15, -24.25], [132.25, -24.5], [132.15, -24.75], [132.25, -25.0], [132.03, -25.53], [131.5, -25.75], [131.25, -25.65], [131.0, -25.75], [130.75, -25.65], [130.68, -25.68], [130.53, -26.03], [130.0, -26.25], [129.75, -26.15], [129.68, -26.18], [129.53, -26.53], [129.0, -26.75], [128.7, -26.62], [128.65, -26.75], [128.75, -27.0], [128.53, -27.53], [128.0, -27.75], [127.75, -27.65], [127.5, -27.75], [127.25, -27.65], [127.0, -27.75], [126.75, -27.65], [126.68, -27.68], [126.53, -28.03], [126.0, -28.25], [125.47, -28.03], [125.25, -27.5], [125.47, -26.97], [125.82, -26.82], [125.85, -26.75], [125.75, -26.5], [125.85, -26.25], [125.75, -26.0], [125.85, -25.75], [125.75, -25.5], [125.96, -25.0], [125.82, -24.68], [125.75, -24.65], [125.5, -24.75], [125.25, -24.65], [125.0, -24.75], [124.75, -24.65], [124.5, -24.75], [123.97, -24.53], [123.82, -24.18], [123.47, -24.03], [123.32, -23.68], [122.97, -23.53], [122.82, -23.18], [122.47, -23.03], [122.32, -22.68], [121.97, -22.53], [121.82, -22.18], [121.47, -22.03], [121.32, -21.68], [120.97, -21.53]]]]}, "2022-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -21.53], [120.75, -21.0], [120.97, -20.47], [121.5, -20.25], [121.75, -20.35], [122.0, -20.25], [122.25, -20.35], [122.5, -20.25], [122.75, -20.35], [123.0, -20.25], [123.53, -20.47], [123.68, -20.82], [123.75, -20.85], [123.82, -20.82], [123.97, -20.47], [124.5, -20.25], [125.03, -20.47], [125.18, -20.82], [125.25, -20.85], [125.5, -20.75], [125.75, -20.85], [126.0, -20.75], [126.53, -20.97], [126.68, -21.32], [127.03, -21.47], [127.18, -21.82], [127.25, -21.85], [127.5, -21.75], [127.75, -21.85], [128.0, -21.75], [128.25, -21.85], [128.5, -21.75], [128.75, -21.85], [129.0, -21.75], [129.25, -21.85], [129.5, -21.75], [130.03, -21.97], [130.18, -22.32], [130.25, -22.35], [130.5, -22.25], [131.03, -22.47], [131.18, -22.82], [131.53, -22.97], [131.68, -23.32], [132.03, -23.47], [132.25, -24.0], [132.15, -24.25], [132.25, -24.5], [132.15, -24.75], [132.25, -25.0], [132.03, -25.53], [131.5, -25.75], [131.25, -25.65], [131.0, -25.75], [130.75, -25.65], [130.68, -25.68], [130.53, -26.03], [130.0, -26.25], [129.75, -26.15], [129.68, -26.18], [129.53, -26.53], [129.0, -26.75], [128.7, -26.62], [128.65, -26.75], [128.75, -27.0], [128.53, -27.53], [128.0, -27.75], [127.75, -27.65], [127.5, -27.75], [127.25, -27.65], [127.0, -27.75], [126.75, -27.65], [126.68, -27.68], [126.53, -28.03], [126.0, -28.25], [125.47, -28.03], [125.25, -27.5], [125.47, -26.97], [125.82, -26.82], [125.85, -26.75], [125.75, -26.5], [125.85, -26.25], [125.75, -26.0], [125.85, -25.75], [125.75, -25.5], [125.96, -25.0], [125.82, -24.68], [125.75, -24.65], [125.5, -24.75], [125.25, -24.65], [125.0, -24.75], [124.75, -24.65], [124.5, -24.75], [123.97, -24.53], [123.82, -24.18], [123.47, -24.03], [123.32, -23.68], [122.97, -23.53], [122.82, -23.18], [122.47, -23.03], [122.32, -22.68], [121.97, -22.53], [121.82, -22.18], [121.47, -22.03], [121.32, -21.68], [120.97, -21.53]]]]}, "2022-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.75, -23.0], [125.85, -22.75], [125.75, -22.5], [125.97, -21.97], [126.5, -21.75], [126.75, -21.85], [127.0, -21.75], [127.25, -21.85], [127.5, -21.75], [127.75, -21.85], [128.0, -21.75], [128.25, -21.85], [128.5, -21.75], [128.75, -21.85], [129.0, -21.75], [129.25, -21.85], [129.5, -21.75], [130.03, -21.97], [130.18, -22.32], [130.25, -22.35], [130.5, -22.25], [131.03, -22.47], [131.18, -22.82], [131.53, -22.97], [131.68, -23.32], [132.03, -23.47], [132.25, -24.0], [132.15, -24.25], [132.25, -24.5], [132.15, -24.75], [132.25, -25.0], [132.03, -25.53], [131.5, -25.75], [131.25, -25.65], [131.0, -25.75], [130.75, -25.65], [130.5, -25.75], [129.97, -25.53], [129.82, -25.18], [129.75, -25.15], [129.5, -25.25], [128.97, -25.03], [128.82, -24.68], [128.75, -24.65], [128.5, -24.75], [128.25, -24.65], [128.0, -24.75], [127.75, -24.65], [127.5, -24.75], [126.97, -24.53], [126.82, -24.18], [126.75, -24.15], [126.5, -24.25], [125.97, -24.03], [125.75, -23.5], [125.85, -23.25], [125.75, -23.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.5738707386555}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.306142911399936}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.593094937728267, 11.547761511779754, 12.625442988039481, 13.112297067817849]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.89987821651306, 8.051879701033272, 8.651439194848706, 10.360375758186478]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.79179159650777, -5.7823004225855845, -4.842884538398263, -4.077606218333834]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.5738707386555, -7.882856793108658, -6.416483752889576, -4.846735340297073]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.1626040680387684, -2.0142709058982913, -1.6273508570481174, -1.3749200506112569]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.440105038129811, -2.8207337117574016, -2.194869882265118, -1.6637078126564802]}}