{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:48.679525", "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": "2012-Mar-11_to_2012-Mar-14_138.0_0.5"}, "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": 2012030000779}, "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": "March 11 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 14 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 194705.89484007595}, "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": ["Equatorial.Pacific-Ocean", "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": 0.5}, "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": 138.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 134.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 142.25}, "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": 1.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, -0.97], [134.82, -0.82], [134.85, -0.75], [134.75, -0.5], [134.97, 0.03], [135.32, 0.18], [135.47, 0.53], [136.0, 0.75], [136.25, 0.65], [136.32, 0.68], [136.47, 1.03], [136.82, 1.18], [136.97, 1.53], [137.5, 1.75], [137.75, 1.65], [138.0, 1.75], [138.53, 1.53], [138.75, 1.0], [138.65, 0.75], [138.75, 0.5], [138.65, 0.25], [138.75, 0.0], [138.53, -0.53], [138.0, -0.75], [137.75, -0.65], [137.68, -0.68], [137.53, -1.03], [137.0, -1.25], [136.75, -1.15], [136.68, -1.18], [136.53, -1.53], [136.18, -1.68], [136.15, -1.75], [136.25, -2.0], [136.03, -2.53], [135.5, -2.75], [134.97, -2.53], [134.82, -2.18], [134.47, -2.03], [134.25, -1.5], [134.47, -0.97]]], [[[139.47, -0.53], [139.25, 0.0], [139.47, 0.53], [140.0, 0.75], [140.53, 0.53], [140.75, 0.0], [140.53, -0.53], [140.0, -0.75], [139.47, -0.53]]]]}, "2012-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, -0.97], [134.82, -0.82], [134.85, -0.75], [134.75, -0.5], [134.97, 0.03], [135.32, 0.18], [135.47, 0.53], [136.0, 0.75], [136.25, 0.65], [136.32, 0.68], [136.47, 1.03], [136.82, 1.18], [136.97, 1.53], [137.5, 1.75], [137.75, 1.65], [138.0, 1.75], [138.25, 1.65], [138.5, 1.75], [138.75, 1.65], [139.0, 1.75], [139.25, 1.65], [139.32, 1.68], [139.47, 2.03], [140.0, 2.25], [140.25, 2.15], [140.5, 2.25], [140.75, 2.15], [141.0, 2.25], [141.53, 2.03], [141.75, 1.5], [141.65, 1.25], [141.68, 1.18], [142.03, 1.03], [142.18, 0.68], [142.53, 0.53], [142.75, 0.0], [142.53, -0.53], [142.13, -0.7], [142.25, -1.0], [142.15, -1.25], [142.25, -1.5], [142.03, -2.03], [141.5, -2.25], [141.25, -2.15], [141.0, -2.25], [140.47, -2.03], [140.32, -1.68], [139.97, -1.53], [139.8, -1.13], [139.5, -1.25], [139.25, -1.15], [139.13, -1.2], [139.25, -1.5], [139.03, -2.03], [138.5, -2.25], [138.25, -2.15], [138.0, -2.25], [137.75, -2.15], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.5, -2.75], [136.25, -2.65], [136.0, -2.75], [135.75, -2.65], [135.68, -2.68], [135.53, -3.03], [135.0, -3.25], [134.47, -3.03], [134.25, -2.5], [134.46, -2.0], [134.25, -1.5], [134.47, -0.97]], [[137.88, -0.8], [137.82, -0.68], [137.75, -0.65], [137.68, -0.68], [137.63, -0.8], [137.75, -0.85], [137.88, -0.8]]]]}, "2012-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, -0.97], [134.82, -0.82], [134.85, -0.75], [134.75, -0.5], [134.97, 0.03], [135.32, 0.18], [135.47, 0.53], [136.0, 0.75], [136.25, 0.65], [136.32, 0.68], [136.47, 1.03], [136.82, 1.18], [136.97, 1.53], [137.5, 1.75], [137.75, 1.65], [138.0, 1.75], [138.25, 1.65], [138.5, 1.75], [138.75, 1.65], [139.0, 1.75], [139.25, 1.65], [139.32, 1.68], [139.47, 2.03], [140.0, 2.25], [140.25, 2.15], [140.5, 2.25], [140.75, 2.15], [141.0, 2.25], [141.53, 2.03], [141.75, 1.5], [141.65, 1.25], [141.68, 1.18], [142.03, 1.03], [142.18, 0.68], [142.53, 0.53], [142.75, 0.0], [142.53, -0.53], [142.13, -0.7], [142.25, -1.0], [142.15, -1.25], [142.25, -1.5], [142.03, -2.03], [141.5, -2.25], [141.25, -2.15], [141.0, -2.25], [140.47, -2.03], [140.32, -1.68], [139.97, -1.53], [139.8, -1.13], [139.5, -1.25], [139.25, -1.15], [139.13, -1.2], [139.25, -1.5], [139.03, -2.03], [138.5, -2.25], [138.25, -2.15], [138.0, -2.25], [137.75, -2.15], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.5, -2.75], [136.25, -2.65], [136.0, -2.75], [135.75, -2.65], [135.68, -2.68], [135.53, -3.03], [135.0, -3.25], [134.47, -3.03], [134.25, -2.5], [134.46, -2.0], [134.25, -1.5], [134.47, -0.97]], [[137.88, -0.8], [137.82, -0.68], [137.75, -0.65], [137.68, -0.68], [137.63, -0.8], [137.75, -0.85], [137.88, -0.8]]]]}, "2012-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.5, -1.25], [135.75, -1.35], [135.82, -1.32], [135.85, -1.25], [135.75, -1.0], [135.97, -0.47], [136.5, -0.25], [136.93, -0.43], [136.82, -0.18], [136.47, -0.03], [136.25, 0.5], [136.47, 1.03], [136.82, 1.18], [136.97, 1.53], [137.5, 1.75], [137.75, 1.65], [138.0, 1.75], [138.25, 1.65], [138.5, 1.75], [138.75, 1.65], [139.0, 1.75], [139.25, 1.65], [139.32, 1.68], [139.47, 2.03], [140.0, 2.25], [140.25, 2.15], [140.5, 2.25], [140.75, 2.15], [141.0, 2.25], [141.53, 2.03], [141.75, 1.5], [141.65, 1.25], [141.68, 1.18], [142.03, 1.03], [142.18, 0.68], [142.53, 0.53], [142.75, 0.0], [142.53, -0.53], [142.13, -0.7], [142.25, -1.0], [142.15, -1.25], [142.25, -1.5], [142.03, -2.03], [141.5, -2.25], [141.25, -2.15], [141.0, -2.25], [140.47, -2.03], [140.32, -1.68], [139.97, -1.53], [139.8, -1.13], [139.5, -1.25], [139.25, -1.15], [139.13, -1.2], [139.25, -1.5], [139.03, -2.03], [138.5, -2.25], [138.25, -2.15], [138.0, -2.25], [137.75, -2.15], [137.68, -2.18], [137.53, -2.53], [137.0, -2.75], [136.75, -2.65], [136.5, -2.75], [136.25, -2.65], [136.0, -2.75], [135.75, -2.65], [135.68, -2.68], [135.53, -3.03], [135.0, -3.25], [134.47, -3.03], [134.25, -2.5], [134.47, -1.97], [134.82, -1.82], [134.97, -1.47], [135.5, -1.25]], [[137.25, -0.85], [137.5, -0.75], [137.07, -0.57], [137.18, -0.82], [137.25, -0.85]], [[137.75, -0.85], [137.88, -0.8], [137.82, -0.68], [137.75, -0.65], [137.5, -0.75], [137.75, -0.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.636088628459845}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -0.9742689092349003}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.22195146440845, 26.05300018525179, 26.08379820919697, 26.350822957152275]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.84305232524798, 25.63948913875629, 25.248133801742426, 25.903288920963803]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7909085186942292, -1.0621385539177988, -1.0492254564917647, -0.8475219422850612]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9274606374845007, -1.3683317542659097, -1.636088628459845, -1.1222968630865466]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4575534862484143, -1.9189818661875633, -1.8949257031028968, -1.4975707334339]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6738373373129458, -2.353278461509651, -2.767007087008694, -1.9176861235825935]}}