{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:06.178672", "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": "2019-Feb-13_to_2019-Feb-15_135.0_-25.5"}, "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": 2019020000447}, "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": "February 13 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 15 2019"}, "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": 56263.30181574847}, "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": ["C.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": []}, "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": -25.5}, "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": 135.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "135.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -23.97], [133.0, -23.75], [133.25, -23.85], [133.5, -23.75], [133.75, -23.85], [133.82, -23.82], [133.85, -23.75], [133.75, -23.5], [133.97, -22.97], [134.5, -22.75], [134.75, -22.85], [135.0, -22.75], [135.25, -22.85], [135.5, -22.75], [136.03, -22.97], [136.18, -23.32], [136.53, -23.47], [136.75, -24.0], [136.53, -24.53], [136.18, -24.68], [136.03, -25.03], [135.68, -25.18], [135.65, -25.25], [135.75, -25.5], [135.53, -26.03], [135.0, -26.25], [134.5, -26.04], [134.0, -26.25], [133.47, -26.03], [133.32, -25.68], [133.25, -25.65], [133.0, -25.75], [132.47, -25.53], [132.25, -25.0], [132.35, -24.75], [132.25, -24.5], [132.47, -23.97]]]]}, "2019-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -23.97], [133.0, -23.75], [133.25, -23.85], [133.5, -23.75], [133.75, -23.85], [133.82, -23.82], [133.85, -23.75], [133.75, -23.5], [133.97, -22.97], [134.5, -22.75], [134.75, -22.85], [135.0, -22.75], [135.25, -22.85], [135.5, -22.75], [136.03, -22.97], [136.18, -23.32], [136.53, -23.47], [136.75, -24.0], [136.53, -24.53], [136.18, -24.68], [136.03, -25.03], [135.68, -25.18], [135.65, -25.25], [135.75, -25.5], [135.53, -26.03], [135.0, -26.25], [134.5, -26.04], [134.0, -26.25], [133.47, -26.03], [133.32, -25.68], [133.25, -25.65], [133.0, -25.75], [132.47, -25.53], [132.25, -25.0], [132.35, -24.75], [132.25, -24.5], [132.47, -23.97]]]]}, "2019-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -23.97], [133.0, -23.75], [133.25, -23.85], [133.5, -23.75], [133.75, -23.85], [133.82, -23.82], [133.85, -23.75], [133.75, -23.5], [133.97, -22.97], [134.5, -22.75], [134.75, -22.85], [135.0, -22.75], [135.25, -22.85], [135.5, -22.75], [136.03, -22.97], [136.18, -23.32], [136.53, -23.47], [136.75, -24.0], [136.53, -24.53], [136.18, -24.68], [136.03, -25.03], [135.68, -25.18], [135.65, -25.25], [135.75, -25.5], [135.53, -26.03], [135.0, -26.25], [134.5, -26.04], [134.0, -26.25], [133.47, -26.03], [133.32, -25.68], [133.25, -25.65], [133.0, -25.75], [132.47, -25.53], [132.25, -25.0], [132.35, -24.75], [132.25, -24.5], [132.47, -23.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.526713560969313}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.855763236566305}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.173685423977986, 24.785243425271346, 26.122674794521345]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.024653619209346, 23.690159830127527, 24.914651802351784]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.914909460966396, -5.418691881277485, -4.233688367455033]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.526713560969313, -6.02231826266501, -4.684115994812373]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5719763303911791, -1.7505986124896835, -1.4216588006094082]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.906986649092399, -1.8527759885826167, -1.5411086458796308]}}