{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:35.984373", "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-Oct-15_to_2011-Oct-21_135.0_-16.0"}, "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": 2011100000738}, "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 15 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 50321.276067805135}, "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": ["N.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": -16.0}, "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": 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": 132.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.97, -17.03], [131.75, -16.5], [131.97, -15.97], [132.5, -15.75], [132.75, -15.85], [133.0, -15.75], [133.25, -15.85], [133.5, -15.75], [133.75, -15.85], [134.0, -15.75], [134.25, -15.85], [134.5, -15.75], [135.03, -15.97], [135.18, -16.32], [135.25, -16.35], [135.5, -16.25], [135.75, -16.35], [136.0, -16.25], [136.53, -16.47], [136.75, -17.0], [136.53, -17.53], [136.0, -17.75], [135.75, -17.65], [135.5, -17.75], [135.25, -17.65], [135.0, -17.75], [134.75, -17.65], [134.68, -17.68], [134.53, -18.03], [134.0, -18.25], [133.75, -18.15], [133.5, -18.25], [132.97, -18.03], [132.75, -17.5], [132.85, -17.25], [132.82, -17.18], [132.75, -17.15], [132.5, -17.25], [131.97, -17.03]]]]}, "2011-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.97, -17.03], [131.75, -16.5], [131.97, -15.97], [132.5, -15.75], [132.75, -15.85], [133.0, -15.75], [133.25, -15.85], [133.5, -15.75], [133.75, -15.85], [133.82, -15.82], [133.97, -15.47], [134.5, -15.25], [134.75, -15.35], [135.0, -15.25], [135.53, -15.47], [135.7, -15.87], [136.0, -15.75], [136.53, -15.97], [136.75, -16.5], [136.65, -16.75], [136.75, -17.0], [136.53, -17.53], [136.0, -17.75], [135.75, -17.65], [135.5, -17.75], [135.25, -17.65], [135.0, -17.75], [134.75, -17.65], [134.68, -17.68], [134.53, -18.03], [134.0, -18.25], [133.75, -18.15], [133.5, -18.25], [132.97, -18.03], [132.75, -17.5], [132.85, -17.25], [132.82, -17.18], [132.75, -17.15], [132.5, -17.25], [131.97, -17.03]]]]}, "2011-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.97, -17.03], [131.75, -16.5], [131.97, -15.97], [132.5, -15.75], [132.75, -15.85], [133.0, -15.75], [133.25, -15.85], [133.5, -15.75], [133.75, -15.85], [133.82, -15.82], [133.97, -15.47], [134.5, -15.25], [134.75, -15.35], [135.0, -15.25], [135.53, -15.47], [135.7, -15.87], [136.0, -15.75], [136.53, -15.97], [136.75, -16.5], [136.65, -16.75], [136.75, -17.0], [136.53, -17.53], [136.0, -17.75], [135.75, -17.65], [135.5, -17.75], [135.25, -17.65], [135.0, -17.75], [134.75, -17.65], [134.68, -17.68], [134.53, -18.03], [134.0, -18.25], [133.75, -18.15], [133.5, -18.25], [132.97, -18.03], [132.75, -17.5], [132.85, -17.25], [132.82, -17.18], [132.75, -17.15], [132.5, -17.25], [131.97, -17.03]]]]}, "2011-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.97, -16.53], [133.75, -16.0], [133.97, -15.47], [134.5, -15.25], [134.75, -15.35], [135.0, -15.25], [135.53, -15.47], [135.7, -15.87], [136.0, -15.75], [136.25, -15.85], [136.5, -15.75], [137.03, -15.97], [137.25, -16.5], [137.03, -17.03], [136.5, -17.25], [136.25, -17.15], [136.18, -17.18], [136.03, -17.53], [135.5, -17.75], [134.97, -17.53], [134.75, -17.0], [134.88, -16.7], [134.75, -16.65], [134.5, -16.75], [133.97, -16.53]]]]}, "2011-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.97, -16.53], [133.75, -16.0], [133.97, -15.47], [134.5, -15.25], [134.75, -15.35], [135.0, -15.25], [135.53, -15.47], [135.7, -15.87], [136.0, -15.75], [136.25, -15.85], [136.5, -15.75], [137.03, -15.97], [137.25, -16.5], [137.03, -17.03], [136.5, -17.25], [136.25, -17.15], [136.0, -17.25], [135.47, -17.03], [135.3, -16.62], [135.0, -16.75], [134.75, -16.65], [134.5, -16.75], [133.97, -16.53]]]]}, "2011-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, -17.03], [135.75, -16.5], [135.97, -15.97], [136.5, -15.75], [137.03, -15.97], [137.25, -16.5], [137.03, -17.03], [136.5, -17.25], [135.97, -17.03]]], [[[133.75, -16.0], [133.97, -15.47], [134.5, -15.25], [134.75, -15.35], [135.0, -15.25], [135.53, -15.47], [135.75, -16.0], [135.53, -16.53], [135.0, -16.75], [134.75, -16.65], [134.5, -16.75], [133.97, -16.53], [133.75, -16.0]]]]}, "2011-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.5, -15.75], [137.03, -15.97], [137.25, -16.5], [137.03, -17.03], [136.5, -17.25], [135.97, -17.03], [135.75, -16.5], [135.97, -15.97], [136.5, -15.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.408055504324977}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.930348810968948}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.964121612832514, 23.192918820421028, 25.818692436491858, 26.688873199000682, 26.781781197297164, 27.08490357477058, 26.892586052307195]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.33835841415089, 21.903024248169572, 24.96967878115771, 26.391196367081022, 26.598592362806414, 26.823527131954734, 26.892586052307195]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.3814092352857084, -6.18595975222004, -3.5516079226510584, -2.302106218502183, -2.1896524897437786, -2.0713648467598205, -1.7175925877817235]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.930379382708338, -7.408055504324977, -4.777145074965858, -2.7099707513455087, -2.6033860565257214, -2.391217345725579, -1.7175925877817235]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5610393913569083, -3.0281440437157885, -1.6261840190250842, -1.1654784494202548, -1.1117938878123645, -1.053520496660712, -1.0269755497373092]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.716657359847339, -3.992405592568486, -2.015811944821064, -1.207766304574636, -1.2076021403303967, -1.1149186129401727, -1.0269755497373092]}}