{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:37.382749", "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": "2022-Oct-23_to_2022-Oct-30_112.0_-8.0"}, "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": 2022100000879}, "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 23 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 30 2022"}, "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": 64348.62337615213}, "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"]}, "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": ["Java 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": -8.0}, "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": 112.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "112.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 110.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 114.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[114.53, -8.53], [114.0, -8.75], [113.75, -8.65], [113.5, -8.75], [113.25, -8.65], [113.0, -8.75], [112.75, -8.65], [112.5, -8.75], [112.25, -8.65], [112.0, -8.75], [111.75, -8.65], [111.5, -8.75], [111.25, -8.65], [111.0, -8.75], [110.75, -8.65], [110.5, -8.75], [109.97, -8.53], [109.75, -8.0], [109.85, -7.75], [109.75, -7.5], [109.85, -7.25], [109.75, -7.0], [109.97, -6.47], [110.5, -6.25], [110.75, -6.35], [111.0, -6.25], [111.25, -6.35], [111.5, -6.25], [111.75, -6.35], [112.0, -6.25], [112.53, -6.47], [112.68, -6.82], [112.75, -6.85], [112.82, -6.82], [112.97, -6.47], [113.5, -6.25], [113.75, -6.35], [114.0, -6.25], [114.53, -6.47], [114.75, -7.0], [114.65, -7.25], [114.75, -7.5], [114.65, -7.75], [114.75, -8.0], [114.53, -8.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.47, -6.47], [114.0, -6.25], 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"coordinates": [[[[111.5, -8.75], [110.97, -8.53], [110.75, -8.0], [110.97, -7.47], [111.5, -7.25], [111.75, -7.35], [112.0, -7.25], [112.25, -7.35], [112.5, -7.25], [112.75, -7.35], [113.0, -7.25], [113.5, -7.46], [114.0, -7.25], [114.53, -7.47], [114.75, -8.0], [114.53, -8.53], [114.0, -8.75], [113.5, -8.54], [113.0, -8.75], [112.75, -8.65], [112.5, -8.75], [112.25, -8.65], [112.0, -8.75], [111.75, -8.65], [111.5, -8.75]]]]}, "2022-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.5, -8.75], [110.97, -8.53], [110.75, -8.0], [110.97, -7.47], [111.5, -7.25], [111.75, -7.35], [112.0, -7.25], [112.25, -7.35], [112.5, -7.25], [112.75, -7.35], [113.0, -7.25], [113.5, -7.46], [114.0, -7.25], [114.53, -7.47], [114.75, -8.0], [114.53, -8.53], [114.0, -8.75], [113.5, -8.54], [113.0, -8.75], [112.75, -8.65], [112.5, -8.75], [112.25, -8.65], [112.0, -8.75], [111.75, -8.65], [111.5, -8.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.425398874224129}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5256615731956729}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.724689085073635, 25.39137104438828, 25.386545712243446, 24.714815249486435, 24.2048256058668, 23.190579232600157, 22.772068558756757, 22.29024564666122]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.582599081609033, 21.27263371268498, 21.133390823903767, 20.874493195362902, 20.233322968668688, 20.649229481614896, 21.403221372828796, 20.963778711833413]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0306579123149504, -1.4867074512995595, -1.4935764713907689, -1.6096771645372367, -1.5963983590958557, 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