{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:00.909663", "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-May-08_to_2022-May-12_94.5_21.0"}, "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": 2022050000375}, "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": "May 08 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 12 2022"}, "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": 100989.1784231975}, "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"]}, "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": 21.0}, "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": 94.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[94.0, 22.75], [94.25, 22.65], [94.5, 22.75], [94.75, 22.65], [95.0, 22.75], [95.25, 22.65], [95.5, 22.75], [96.03, 22.53], 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["S.Asia", "S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.47, 21.47], [93.25, 22.0], [93.47, 22.53], [94.0, 22.75], [94.25, 22.65], [94.5, 22.75], [94.75, 22.65], [95.0, 22.75], [95.25, 22.65], [95.5, 22.75], [96.03, 22.53], [96.18, 22.18], [96.25, 22.15], [96.32, 22.18], [96.47, 22.53], [97.0, 22.75], [97.25, 22.65], [97.5, 22.75], [98.03, 22.53], [98.18, 22.18], [98.25, 22.15], [98.5, 22.25], [99.03, 22.03], [99.25, 21.5], [99.03, 20.97], [98.68, 20.82], [98.53, 20.47], [98.0, 20.25], [97.75, 20.35], [97.5, 20.25], [97.25, 20.35], [97.0, 20.25], [96.47, 20.47], [96.32, 20.82], [96.25, 20.85], [96.18, 20.82], [96.15, 20.75], [96.25, 20.5], [96.15, 20.25], [96.25, 20.0], [96.15, 19.75], [96.25, 19.5], [96.15, 19.25], [96.25, 19.0], [96.03, 18.47], [95.5, 18.25], [95.25, 18.35], [95.0, 18.25], [94.47, 18.47], 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"MultiPolygon", "coordinates": [[[[97.75, 22.0], [97.97, 22.53], [98.5, 22.75], [98.75, 22.65], [99.0, 22.75], [99.53, 22.53], [99.75, 22.0], [99.65, 21.75], [99.75, 21.5], [99.53, 20.97], [99.0, 20.75], [98.75, 20.85], [98.5, 20.75], [97.97, 20.97], [97.75, 21.5], [97.85, 21.75], [97.75, 22.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.0421428029973185}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.291257341276622}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.169232016749845, 25.490564186333415, 25.249225626597195, 23.965543497647843, 23.362050951239496]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.0225526535649, 21.235186849109425, 21.019580433982185, 22.432509359344863, 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