{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:31.203273", "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-Jan-10_to_2011-Jan-14_111.5_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": 2011010000584}, "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": "January 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 14 2011"}, "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": 114352.69872610047}, "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", "Malaysia"]}, "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": ["South China 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": 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": 111.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "111.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 109.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 113.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -2.25}, "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": {"2011-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, -1.53], [108.75, -1.0], [108.97, -0.47], [109.5, -0.25], [110.03, -0.47], [110.25, -1.0], [110.03, -1.53], [109.5, -1.75], [108.97, -1.53]]], [[[110.47, -1.03], [110.25, -0.5], [110.47, 0.03], [111.0, 0.25], [111.53, 0.03], [111.75, -0.5], [111.53, -1.03], [111.0, -1.25], [110.47, -1.03]]]]}, "2011-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, 2.03], [109.5, 2.25], [109.75, 2.15], [110.0, 2.25], [110.25, 2.15], [110.5, 2.25], [110.75, 2.15], [111.0, 2.25], [111.25, 2.15], [111.5, 2.25], [112.03, 2.03], [112.18, 1.68], [112.25, 1.65], [112.5, 1.75], [113.03, 1.53], [113.25, 1.0], [113.15, 0.75], [113.25, 0.5], [113.15, 0.25], [113.25, 0.0], [113.15, -0.25], [113.25, -0.5], [113.03, -1.03], [112.5, -1.25], [112.25, -1.15], [112.13, -1.2], [112.18, -1.32], [112.53, -1.47], [112.75, -2.0], [112.53, -2.53], [112.0, -2.75], [111.75, -2.65], [111.5, -2.75], [110.97, -2.53], [110.82, -2.18], [110.47, -2.03], [110.32, -1.68], [110.0, -1.54], [109.5, -1.75], [108.97, -1.53], [108.75, -1.0], [108.97, -0.47], [109.32, -0.32], [109.35, -0.25], [109.25, 0.0], [109.38, 0.3], [108.97, 0.47], [108.75, 1.0], [108.85, 1.25], [108.75, 1.5], [108.97, 2.03]]]]}, "2011-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, 2.03], [109.5, 2.25], [109.75, 2.15], [110.0, 2.25], [110.25, 2.15], [110.5, 2.25], [110.75, 2.15], [111.0, 2.25], [111.25, 2.15], [111.5, 2.25], [112.03, 2.03], [112.18, 1.68], [112.25, 1.65], [112.5, 1.75], [113.03, 1.53], [113.25, 1.0], [113.15, 0.75], [113.18, 0.68], [113.53, 0.53], [113.75, 0.0], [113.53, -0.53], [113.18, -0.68], [113.03, -1.03], [112.68, -1.18], [112.54, -1.5], [112.75, -2.0], [112.53, -2.53], [112.0, -2.75], [111.75, -2.65], [111.5, -2.75], [110.97, -2.53], [110.82, -2.18], [110.47, -2.03], [110.32, -1.68], [110.0, -1.54], [109.5, -1.75], [108.97, -1.53], [108.75, -1.0], [108.97, -0.47], [109.32, -0.32], [109.35, -0.25], [109.25, 0.0], [109.38, 0.3], [108.97, 0.47], [108.75, 1.0], [108.85, 1.25], [108.75, 1.5], [108.97, 2.03]]]]}, "2011-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, 2.03], [109.5, 2.25], [109.75, 2.15], [110.0, 2.25], [110.25, 2.15], [110.5, 2.25], [110.75, 2.15], [111.0, 2.25], [111.25, 2.15], [111.5, 2.25], [112.03, 2.03], [112.18, 1.68], [112.25, 1.65], [112.5, 1.75], [113.03, 1.53], [113.25, 1.0], [113.15, 0.75], [113.18, 0.68], [113.53, 0.53], [113.75, 0.0], [113.53, -0.53], [113.18, -0.68], [113.03, -1.03], [112.68, -1.18], [112.54, -1.5], [112.75, -2.0], [112.53, -2.53], [112.0, -2.75], [111.75, -2.65], [111.5, -2.75], [110.97, -2.53], [110.82, -2.18], [110.47, -2.03], [110.32, -1.68], [109.97, -1.53], [109.82, -1.18], [109.47, -1.03], [109.25, -0.5], [109.35, -0.25], [109.25, 0.0], [109.38, 0.3], [108.97, 0.47], [108.75, 1.0], [108.85, 1.25], [108.75, 1.5], [108.97, 2.03]]]]}, "2011-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.97, 2.03], [109.5, 2.25], [109.75, 2.15], [110.0, 2.25], [110.25, 2.15], [110.5, 2.25], [110.75, 2.15], [111.0, 2.25], [111.25, 2.15], [111.5, 2.25], [112.03, 2.03], [112.18, 1.68], [112.25, 1.65], [112.5, 1.75], [113.03, 1.53], [113.25, 1.0], [113.15, 0.75], [113.18, 0.68], [113.53, 0.53], [113.75, 0.0], [113.53, -0.53], [113.18, -0.68], [113.03, -1.03], [112.68, -1.18], [112.53, -1.53], [112.0, -1.75], [111.75, -1.65], [111.5, -1.75], [111.25, -1.65], [111.0, -1.75], [110.75, -1.65], [110.5, -1.75], [109.97, -1.53], [109.82, -1.18], [109.47, -1.03], [109.25, -0.5], [109.35, -0.25], [109.25, 0.0], [109.38, 0.3], [108.97, 0.47], [108.75, 1.0], [108.85, 1.25], [108.75, 1.5], [108.97, 2.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3409902622631193}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.435285986194156}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.454077812320463, 24.05895576646202, 24.252744888374195, 24.005460847189, 23.92240003187777]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.29288245914148, 23.00988294181076, 22.589768356871105, 22.493848991280515, 22.47338709968392]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8734881253621438, -1.5287614745423772, -1.2484182553589362, -1.4648682146635141, -1.5538664528763668]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9240207702304701, -2.3409902622631193, -1.7903600948108647, -2.1128647219354093, -2.007554159873905]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2366866510297108, -1.8997565566176295, -1.5193620309160472, -1.7629357952654972, -1.8412721858267669]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.248403412113089, -2.9326293973524957, -1.86768189128723, -2.389271944568096, -2.278326181549974]}}