{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:21:02.630417", "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": "2019-Dec-27_to_2019-Dec-30_94.5_22.0"}, "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": 2019120000689}, "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 27 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 30 2019"}, "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": 70903.716556542}, "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": ["Myanmar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": []}, "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": 22.0}, "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": 94.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "94.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 97.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 22.75], [93.75, 23.0], [93.85, 23.25], [93.75, 23.5], [93.97, 24.03], [94.32, 24.18], [94.35, 24.25], [94.25, 24.5], [94.47, 25.03], [95.0, 25.25], [95.25, 25.15], [95.32, 25.18], [95.47, 25.53], [96.0, 25.75], [96.53, 25.53], [96.68, 25.18], [97.03, 25.03], [97.18, 24.68], [97.53, 24.53], [97.75, 24.0], [97.65, 23.75], [97.75, 23.5], [97.65, 23.25], [97.75, 23.0], [97.53, 22.47], [97.0, 22.25], [96.75, 22.35], [96.5, 22.25], [96.25, 22.35], [96.18, 22.32], [96.03, 21.97], [95.68, 21.82], [95.53, 21.47], [95.0, 21.25], [94.75, 21.35], [94.5, 21.25], [93.97, 21.47], [93.75, 22.0], [93.85, 22.25], [93.75, 22.5], [93.85, 22.75]]]]}, "2019-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 22.75], [93.75, 23.0], [93.85, 23.25], [93.75, 23.5], [93.97, 24.03], [94.32, 24.18], [94.35, 24.25], [94.25, 24.5], [94.47, 25.03], [95.0, 25.25], [95.25, 25.15], [95.32, 25.18], [95.47, 25.53], [96.0, 25.75], [96.53, 25.53], [96.68, 25.18], [97.03, 25.03], [97.18, 24.68], [97.53, 24.53], [97.75, 24.0], [97.65, 23.75], [97.75, 23.5], [97.65, 23.25], [97.75, 23.0], [97.53, 22.47], [97.0, 22.25], [96.75, 22.35], [96.5, 22.25], [96.25, 22.35], [96.18, 22.32], [96.03, 21.97], [95.68, 21.82], [95.53, 21.47], [95.0, 21.25], [94.75, 21.35], [94.5, 21.25], [93.97, 21.47], [93.75, 22.0], [93.85, 22.25], [93.75, 22.5], [93.85, 22.75]]]]}, "2019-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 22.75], [93.75, 23.0], [93.85, 23.25], [93.75, 23.5], [93.97, 24.03], [94.32, 24.18], [94.35, 24.25], [94.25, 24.5], [94.47, 25.03], [95.0, 25.25], [95.25, 25.15], [95.32, 25.18], [95.47, 25.53], [96.0, 25.75], [96.53, 25.53], [96.68, 25.18], [97.03, 25.03], [97.18, 24.68], [97.53, 24.53], [97.75, 24.0], [97.65, 23.75], [97.75, 23.5], [97.65, 23.25], [97.75, 23.0], [97.53, 22.47], [97.0, 22.25], [96.75, 22.35], [96.5, 22.25], [96.25, 22.35], [96.18, 22.32], [96.03, 21.97], [95.68, 21.82], [95.53, 21.47], [95.0, 21.25], [94.75, 21.35], [94.5, 21.25], [93.97, 21.47], [93.75, 22.0], [93.85, 22.25], [93.75, 22.5], [93.85, 22.75]]]]}, "2019-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.85, 22.75], [93.75, 23.0], [93.97, 23.53], [94.5, 23.75], [95.03, 23.53], [95.25, 23.0], [95.15, 22.75], [95.25, 22.5], [95.15, 22.25], [95.25, 22.0], [95.03, 21.47], [94.5, 21.25], [93.97, 21.47], [93.75, 22.0], [93.85, 22.25], [93.75, 22.5], [93.85, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.357567625149386}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2541368797322217}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.78577686588244, 16.014618897738956, 16.01237814623778, 16.84887252545883]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.439198644389592, 11.887598554901047, 12.598336921704231, 16.43132997468507]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.4502676365913976, -2.1952499488777653, -2.1929461161292987, -1.620361359717246]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.3472059415686317, -3.357567625149386, -2.7323389694273033, -1.7643180306121167]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9859190037938967, -1.7636696948110637, -1.7788308102078663, -1.4162111211540556]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.869197373981069, -2.835065985830311, -2.370977014253857, -1.5268416543839036]}}