{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:07.145579", "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": "2020-Mar-07_to_2020-Mar-09_149.0_-43.0"}, "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": 2020030000212}, "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": "March 07 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 09 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 123886.26715844966}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": ["Bass Strait", "Tasman 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": -43.0}, "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": 149.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "149.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 152.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -38.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -39.97], [147.32, -39.82], [147.47, -39.47], [148.0, -39.25], [148.25, -39.35], [148.32, -39.32], [148.47, -38.97], [148.82, -38.82], [148.97, -38.47], [149.5, -38.25], [149.75, -38.35], [150.0, -38.25], [150.25, -38.35], [150.5, -38.25], [150.75, -38.35], [151.0, -38.25], [151.53, -38.47], [151.75, -39.0], [151.65, -39.25], [151.75, -39.5], [151.63, -39.8], [151.75, -39.85], [152.0, -39.75], [152.53, -39.97], [152.75, -40.5], [152.65, -40.75], [152.75, -41.0], [152.53, -41.53], [152.18, -41.68], [152.15, -41.75], [152.25, -42.0], [152.03, -42.53], [151.68, -42.68], [151.53, -43.03], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.2, -43.12], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.25, -43.0], [148.35, -42.75], [148.32, -42.68], [147.97, -42.53], [147.75, -42.0], [147.85, -41.75], [147.8, -41.62], [147.5, -41.75], [146.97, -41.53], [146.75, -41.0], [146.85, -40.75], [146.75, -40.5], [146.97, -39.97]]]]}, "2020-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -39.97], [147.32, -39.82], [147.47, -39.47], [148.0, -39.25], [148.25, -39.35], [148.32, -39.32], [148.47, -38.97], [148.82, -38.82], [148.97, -38.47], [149.5, -38.25], [149.75, -38.35], [150.0, -38.25], [150.25, -38.35], [150.5, -38.25], [150.75, -38.35], [151.0, -38.25], [151.53, -38.47], [151.75, -39.0], [151.65, -39.25], [151.75, -39.5], [151.63, -39.8], [151.75, -39.85], [152.0, -39.75], [152.53, -39.97], [152.75, -40.5], [152.65, -40.75], [152.75, -41.0], [152.53, -41.53], [152.18, -41.68], [152.15, -41.75], [152.25, -42.0], [152.03, -42.53], [151.68, -42.68], [151.53, -43.03], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.2, -43.12], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.25, -43.0], [148.35, -42.75], [148.32, -42.68], [147.97, -42.53], [147.75, -42.0], [147.85, -41.75], [147.8, -41.62], [147.5, -41.75], [146.97, -41.53], [146.75, -41.0], [146.85, -40.75], [146.75, -40.5], [146.97, -39.97]]]]}, "2020-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -39.97], [147.32, -39.82], [147.47, -39.47], [148.0, -39.25], [148.25, -39.35], [148.32, -39.32], [148.47, -38.97], [148.82, -38.82], [148.97, -38.47], [149.5, -38.25], [149.75, -38.35], [150.0, -38.25], [150.25, -38.35], [150.5, -38.25], [150.75, -38.35], [151.0, -38.25], [151.53, -38.47], [151.75, -39.0], [151.65, -39.25], [151.75, -39.5], [151.63, -39.8], [151.75, -39.85], [152.0, -39.75], [152.53, -39.97], [152.75, -40.5], [152.65, -40.75], [152.75, -41.0], [152.53, -41.53], [152.18, -41.68], [152.15, -41.75], [152.25, -42.0], [152.03, -42.53], [151.68, -42.68], [151.53, -43.03], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.2, -43.12], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.25, -43.0], [148.35, -42.75], [148.32, -42.68], [147.97, -42.53], [147.75, -42.0], [147.85, -41.75], [147.8, -41.62], [147.5, -41.75], [146.97, -41.53], [146.75, -41.0], [146.85, -40.75], [146.75, -40.5], [146.97, -39.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.215645496565514}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.875398038119096}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.78122463617882, 14.175949907192205, 14.944249388305138]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.478904073923502, 11.509240328747069, 13.333068116119364]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7294669483729246, -3.340372080535601, -2.556355085448762]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.311173791897204, -4.215645496565514, -2.9116385564587404]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.537068814681909, -1.898452047384087, -1.47019077800353]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8042942296995677, -2.320300196109705, -1.709496509435986]}}