{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:07.632957", "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": "2013-Aug-10_to_2013-Aug-17_135.0_-1.5"}, "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": 2013080000537}, "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": "August 10 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 17 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 108169.71940171697}, "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": ["North Pacific Ocean", "South Pacific Ocean"]}, "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": -1.5}, "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": 139.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.35, -1.75], [134.25, -1.5], [134.47, -0.97], [135.0, -0.75], [135.53, -0.97], [135.75, -1.5], [135.65, -1.75], [135.75, -2.0], [135.65, -2.25], [135.75, -2.5], [135.53, -3.03], [135.0, -3.25], [134.47, -3.03], [134.25, -2.5], [134.35, -2.25], [134.25, -2.0], [134.35, -1.75]]]]}, "2013-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.35, -1.75], [134.25, -1.5], [134.47, -0.97], [135.0, -0.75], [134.47, -0.53], [134.25, 0.0], [134.47, 0.53], [135.0, 0.75], [135.53, 0.53], [135.7, 0.13], [136.0, 0.25], [136.53, 0.03], [136.75, -0.5], [136.63, -0.8], [137.03, -0.97], [137.25, -1.5], [137.03, -2.03], [136.5, -2.25], [135.97, -2.03], [135.75, -1.5], [135.65, -1.75], [135.75, -2.0], [135.65, -2.25], [135.75, -2.5], [135.53, -3.03], [135.0, -3.25], [134.47, -3.03], [134.25, -2.5], [134.35, -2.25], [134.25, -2.0], [134.35, -1.75]], [[135.43, -0.93], [135.3, -0.63], [135.0, -0.75], [135.43, -0.93]], [[135.88, -1.2], [135.57, -1.07], [135.75, -1.5], [135.88, -1.2]]]]}, "2013-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.97, -0.97], [134.5, -0.75], [134.75, -0.85], [135.0, -0.75], [134.47, -0.53], [134.25, 0.0], [134.47, 0.53], [135.0, 0.75], [135.53, 0.53], [135.7, 0.13], [136.0, 0.25], [136.53, 0.03], [136.68, -0.32], [136.75, -0.35], [137.0, -0.25], [137.53, -0.47], [137.75, -1.0], [137.65, -1.25], [137.75, -1.5], [137.53, -2.03], [137.0, -2.25], [136.75, -2.15], [136.5, -2.25], [135.97, -2.03], [135.75, -1.5], [135.65, -1.75], [135.75, -2.0], [135.65, -2.25], [135.75, -2.5], [135.53, -3.03], [135.0, -3.25], [134.47, -3.03], [134.32, -2.68], [133.97, -2.53], [133.75, -2.0], [133.85, -1.75], [133.75, -1.5], [133.97, -0.97]], [[135.43, -0.93], [135.3, -0.63], [135.0, -0.75], [135.43, -0.93]], [[135.85, -1.25], [135.82, -1.18], [135.57, -1.07], [135.75, -1.5], [135.85, -1.25]]]]}, "2013-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -0.53], [132.25, 0.0], [132.47, 0.53], [133.0, 0.75], [133.25, 0.65], [133.32, 0.68], [133.47, 1.03], [134.0, 1.25], [134.53, 1.03], [134.68, 0.68], [134.75, 0.65], [134.82, 0.68], [134.97, 1.03], [135.5, 1.25], [136.03, 1.03], [136.18, 0.68], [136.53, 0.53], [136.68, 0.18], [136.75, 0.15], [136.82, 0.18], [136.97, 0.53], [137.5, 0.75], [138.03, 0.53], [138.18, 0.18], [138.25, 0.15], [138.5, 0.25], [139.03, 0.03], [139.18, -0.32], [139.53, -0.47], [139.75, -1.0], [139.53, -1.53], [139.18, -1.68], [139.03, -2.03], [138.5, -2.25], [138.0, -2.04], [137.5, -2.25], [137.25, -2.15], [137.0, -2.25], [136.75, -2.15], [136.5, -2.25], [135.97, -2.03], [135.8, -1.63], [135.68, -1.68], [135.53, -2.03], [135.18, -2.18], [135.03, -2.53], [134.5, -2.75], [133.97, -2.53], [133.75, -2.0], [133.85, -1.75], [133.75, -1.5], [133.97, -0.97], [134.32, -0.82], [134.38, -0.7], [134.25, -0.65], [134.0, -0.75], [133.75, -0.65], [133.5, -0.75], [133.25, -0.65], [133.0, -0.75], [132.47, -0.53]]]]}, "2013-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, 0.53], [133.0, 0.75], [133.25, 0.65], [133.32, 0.68], [133.47, 1.03], [134.0, 1.25], [134.53, 1.03], [134.68, 0.68], [134.75, 0.65], [134.82, 0.68], [134.97, 1.03], [135.5, 1.25], [136.03, 1.03], [136.18, 0.68], [136.53, 0.53], [136.68, 0.18], [136.75, 0.15], [136.82, 0.18], [136.97, 0.53], [137.5, 0.75], [138.03, 0.53], [138.18, 0.18], [138.25, 0.15], [138.5, 0.25], [139.03, 0.03], [139.18, -0.32], [139.53, -0.47], [139.75, -1.0], [139.53, -1.53], [139.18, -1.68], [139.03, -2.03], [138.5, -2.25], [138.0, -2.04], [137.5, -2.25], [137.25, -2.15], [137.0, -2.25], [136.75, -2.15], [136.5, -2.25], [135.97, -2.03], [135.8, -1.63], [135.68, -1.68], [135.53, -2.03], [135.18, -2.18], [135.03, -2.53], [134.5, -2.75], [133.97, -2.53], [133.75, -2.0], [133.85, -1.75], [133.75, -1.5], [133.97, -0.97], [134.32, -0.82], [134.38, -0.7], [134.25, -0.65], [134.0, -0.75], [133.75, -0.65], [133.68, -0.68], [133.53, -1.03], [133.0, -1.25], [132.47, -1.03], [132.25, -0.5], [132.35, -0.25], [132.25, 0.0], [132.47, 0.53]]]]}, "2013-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, 0.53], [133.0, 0.75], [133.25, 0.65], [133.32, 0.68], [133.47, 1.03], [134.0, 1.25], [134.53, 1.03], [134.68, 0.68], [134.75, 0.65], [134.82, 0.68], [134.97, 1.03], [135.5, 1.25], [136.03, 1.03], [136.18, 0.68], [136.53, 0.53], [136.68, 0.18], [136.75, 0.15], [136.82, 0.18], [136.97, 0.53], [137.5, 0.75], [138.03, 0.53], [138.18, 0.18], [138.25, 0.15], [138.5, 0.25], [139.03, 0.03], [139.18, -0.32], [139.53, -0.47], [139.75, -1.0], [139.53, -1.53], [139.18, -1.68], [139.03, -2.03], [138.5, -2.25], [138.0, -2.04], [137.5, -2.25], [136.97, -2.03], [136.82, -1.68], [136.75, -1.65], [136.5, -1.75], [136.0, -1.54], [135.68, -1.68], [135.53, -2.03], [135.0, -2.25], [134.47, -2.03], [134.25, -1.5], [134.35, -1.25], [134.25, -1.0], [134.38, -0.7], [134.25, -0.65], [134.0, -0.75], [133.75, -0.65], [133.68, -0.68], [133.53, -1.03], [133.0, -1.25], [132.47, -1.03], [132.25, -0.5], [132.35, -0.25], [132.25, 0.0], [132.47, 0.53]]]]}, "2013-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 0.03], [136.0, 0.25], [136.25, 0.15], [136.5, 0.25], [137.03, 0.03], [137.25, -0.5], [137.47, 0.03], [138.0, 0.25], [138.25, 0.15], [138.5, 0.25], [139.03, 0.03], [139.25, -0.5], [139.03, -1.03], [138.5, -1.25], [138.25, -1.15], [138.13, -1.2], [138.25, -1.5], [138.03, -2.03], [137.5, -2.25], [136.97, -2.03], [136.8, -1.63], [136.5, -1.75], [135.97, -1.53], [135.82, -1.18], [135.47, -1.03], [135.25, -0.5], [135.47, 0.03]], [[137.15, -0.75], [137.2, -0.87], [137.38, -0.8], [137.25, -0.5], [137.15, -0.75]]], [[[132.47, -1.03], [132.25, -0.5], [132.47, 0.03], [133.0, 0.25], [133.53, 0.03], [133.75, -0.5], [133.53, -1.03], [133.0, -1.25], [132.47, -1.03]]]]}, "2013-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.0, 0.25], [133.53, 0.03], [133.75, -0.5], [133.53, -1.03], [133.0, -1.25], [132.47, -1.03], [132.25, -0.5], [132.47, 0.03], [133.0, 0.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.3714134638293558}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.077759249170581}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.950498162382928, 25.896423159287053, 25.86316833193399, 25.899682296521405, 25.737344431484587, 25.800170059443644, 25.477653093570723, 23.314187867252144]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.841828335771652, 25.70451366815803, 25.53190592996799, 25.532152160692988, 23.128940285181557, 23.185327121195087, 23.305569791878895, 23.314187867252144]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9576237998369947, -1.0246385876211832, -1.0555183681530644, -1.0842733860391967, -1.1472298254102893, -1.0649004060559657, -0.959555340828883, -0.7008916706700461]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9875363074782513, -1.3110497982597167, -1.3124074658683185, -1.2588548048994994, -1.3714134638293558, -1.306308494390521, -1.1163588751279008, -0.7008916706700461]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5462669451668811, -1.5166741204477823, -1.5359624722192164, -1.4760350686632626, -1.5434562870552266, -1.4376729227784868, -1.333545795724953, -1.2849144078041215]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.636120632793447, -1.8357243332837665, -1.7990828746752061, -1.724618417041492, -1.8699550612513078, -1.742648557334399, -1.4410674676928183, -1.2849144078041215]}}