{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:09.869399", "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-Dec-31_to_2012-Jan-04_132.0_-2.5"}, "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": 2011120001555}, "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": "December 31 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 04 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 95585.89995962712}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Arafura Sea", "Banda Sea", "Ceram 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": -2.5}, "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": 132.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "132.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.75}, "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": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, -3.47], [134.0, -3.25], [134.25, -3.35], [134.5, 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-4.47], [136.75, -5.0], [136.53, -5.53], [136.0, -5.75], [135.75, -5.65], [135.68, -5.68], [135.53, -6.03], [135.0, -6.25], [134.47, -6.03], [134.25, -5.5], [134.03, -6.03], [133.5, -6.25], [132.97, -6.03], [132.82, -5.68], [132.47, -5.53], [132.25, -5.0], [132.35, -4.75], [132.32, -4.68], [131.97, -4.53], [131.82, -4.18], [131.47, -4.03], [131.25, -3.5], [131.35, -3.25], [131.25, -3.0], [131.35, -2.75]], [[134.35, -5.25], [134.32, -5.18], [134.25, -5.15], [134.18, -5.18], [134.15, -5.25], [134.25, -5.5], [134.35, -5.25]]]]}, "2012-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.25, -2.0], [130.47, -1.47], [130.82, -1.32], [130.97, -0.97], [131.5, -0.75], [132.03, -0.97], [132.18, -1.32], [132.53, -1.47], [132.75, -2.0], [132.65, -2.25], [132.75, -2.5], [132.65, -2.75], [132.68, -2.82], [133.03, -2.97], [133.2, -3.37], [133.5, -3.25], [133.75, -3.35], [134.0, -3.25], [134.25, -3.35], [134.5, -3.25], [135.03, -3.47], [135.18, -3.82], [135.53, -3.97], [135.68, 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26.308251269084735, 26.42939974412974]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.61805707738563, 25.53971590096228, 25.242561716702482, 25.815172689157123, 26.08949453663479]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9368214818073852, -1.0445885917918134, -1.0737260147827214, -0.9530272251910114, -0.7807505200646047]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1276842710934716, -1.4565531532712725, -1.6145573349875804, -1.3146359320163015, -0.9820585815119784]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.539735173670599, -1.8770503881367233, -2.0582288127647415, -1.9403644522800805, -1.6222018023345013]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7598937282439158, -2.4270048178403067, -3.0155239351992194, -2.839570143303754, -1.964239351896504]}}