{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:06.692445", "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": "2017-Oct-04_to_2017-Oct-06_123.5_-28.0"}, "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": 2017100000179}, "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": "October 04 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 06 2017"}, "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": 89314.52287866488}, "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": -28.0}, "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": 123.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "123.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 120.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -28.53], [120.25, -28.0], [120.47, -27.47], [121.0, -27.25], [121.25, -27.35], [121.5, -27.25], [122.0, -27.46], [122.5, -27.25], [122.75, -27.35], [123.0, -27.25], [123.25, -27.35], [123.5, -27.25], [123.75, -27.35], [124.0, -27.25], [124.25, -27.35], [124.5, -27.25], [125.03, -27.47], [125.18, -27.82], [125.25, -27.85], [125.5, -27.75], [126.03, -27.97], [126.18, -28.32], [126.53, -28.47], [126.75, -29.0], [126.53, -29.53], [126.0, -29.75], [125.75, -29.65], [125.5, -29.75], [125.25, -29.65], [125.13, -29.7], [125.25, -30.0], [125.03, -30.53], [124.5, -30.75], [124.25, -30.65], [124.0, -30.75], [123.75, -30.65], [123.5, -30.75], [123.25, -30.65], [123.0, -30.75], [122.75, -30.65], [122.5, -30.75], [121.97, -30.53], [121.75, -30.0], [121.85, -29.75], [121.82, -29.68], [121.47, -29.53], [121.25, -29.0], [121.35, -28.75], [121.32, -28.68], [121.25, -28.65], [121.0, -28.75], [120.47, -28.53]]]]}, "2017-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -28.53], [120.25, -28.0], [120.47, -27.47], [121.0, -27.25], [121.25, -27.35], [121.5, -27.25], [122.0, -27.46], [122.5, -27.25], [122.75, -27.35], [123.0, -27.25], [123.25, -27.35], [123.5, -27.25], [123.75, -27.35], [124.0, -27.25], [124.25, -27.35], [124.5, -27.25], [125.03, -27.47], [125.18, -27.82], [125.25, -27.85], [125.5, -27.75], [126.03, -27.97], [126.18, -28.32], [126.53, -28.47], [126.75, -29.0], [126.53, -29.53], [126.0, -29.75], [125.75, -29.65], [125.5, -29.75], [125.25, -29.65], [125.13, -29.7], [125.25, -30.0], [125.03, -30.53], [124.5, -30.75], [124.25, -30.65], [124.0, -30.75], [123.75, -30.65], [123.5, -30.75], [123.25, -30.65], [123.0, -30.75], [122.75, -30.65], [122.5, -30.75], [121.97, -30.53], [121.75, -30.0], [121.85, -29.75], [121.82, -29.68], [121.47, -29.53], [121.25, -29.0], [121.35, -28.75], [121.32, -28.68], [121.25, -28.65], [121.0, -28.75], [120.47, -28.53]]]]}, "2017-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -28.53], [120.25, -28.0], [120.47, -27.47], [121.0, -27.25], [121.25, -27.35], [121.5, -27.25], [122.0, -27.46], [122.5, -27.25], [122.75, -27.35], [123.0, -27.25], [123.25, -27.35], [123.5, -27.25], [123.75, -27.35], [124.0, -27.25], [124.25, -27.35], [124.5, -27.25], [125.03, -27.47], [125.18, -27.82], [125.25, -27.85], [125.5, -27.75], [126.03, -27.97], [126.18, -28.32], [126.53, -28.47], [126.75, -29.0], [126.53, -29.53], [126.0, -29.75], [125.75, -29.65], [125.5, -29.75], [125.25, -29.65], [125.13, -29.7], [125.25, -30.0], [125.03, -30.53], [124.5, -30.75], [124.25, -30.65], [124.0, -30.75], [123.75, -30.65], [123.5, -30.75], [123.25, -30.65], [123.0, -30.75], [122.75, -30.65], [122.5, -30.75], [121.97, -30.53], [121.75, -30.0], [121.85, -29.75], [121.82, -29.68], [121.47, -29.53], [121.25, -29.0], [121.35, -28.75], [121.32, -28.68], [121.25, -28.65], [121.0, -28.75], [120.47, -28.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.571298505554296}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.600144219733998}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.618664013201851, 10.470870592505435, 13.505410465581576]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.604198181835898, 9.642989472060947, 12.470015720732249]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.949265178716367, -9.351746622054172, -6.49942085843146]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.968321220701796, -10.571298505554296, -7.487645699014649]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5223072780078122, -2.0120022103212793, -1.4288392881528933]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7931454996646805, -2.2633916548647304, -1.5841549227869203]}}