{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:16.654483", "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": "2025-Jul-05_to_2025-Jul-09_95.0_23.0"}, "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": 2025070000322}, "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": "July 05 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 09 2025"}, "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": 50986.25661616158}, "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": 23.0}, "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": 95.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "95.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 96.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[95.53, 21.47], [95.0, 21.25], [94.47, 21.47], [94.32, 21.82], [93.97, 21.97], [93.75, 22.5], [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], [94.35, 24.75], [94.25, 25.0], [94.47, 25.53], [95.0, 25.75], [95.25, 25.65], [95.5, 25.75], [96.03, 25.53], [96.18, 25.18], [96.53, 25.03], [96.75, 24.5], [96.65, 24.25], [96.75, 24.0], [96.53, 23.47], [96.18, 23.32], [96.15, 23.25], [96.18, 23.18], [96.53, 23.03], [96.75, 22.5], [96.53, 21.97], [96.0, 21.75], [95.7, 21.88], [95.53, 21.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.47, 22.53], [95.0, 22.75], [95.53, 22.53], [95.75, 22.0], [95.53, 21.47], [95.0, 21.25], [94.47, 21.47], [94.25, 22.0], [94.47, 22.53]]]]}, "2025-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.25, 22.5], [94.35, 22.75], [94.25, 23.0], [94.47, 23.53], [95.0, 23.75], [95.53, 23.53], [95.75, 23.0], [95.65, 22.75], [95.75, 22.5], [95.65, 22.25], [95.75, 22.0], [95.53, 21.47], [95.0, 21.25], [94.47, 21.47], [94.25, 22.0], [94.35, 22.25], [94.25, 22.5]]]]}, "2025-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[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], [94.35, 24.75], [94.25, 25.0], [94.47, 25.53], [95.0, 25.75], [95.25, 25.65], [95.5, 25.75], [96.03, 25.53], [96.18, 25.18], [96.53, 25.03], [96.75, 24.5], [96.65, 24.25], [96.75, 24.0], [96.53, 23.47], [96.18, 23.32], [96.15, 23.25], [96.18, 23.18], [96.53, 23.03], [96.75, 22.5], [96.53, 21.97], [96.0, 21.75], [95.7, 21.88], [95.53, 21.47], [95.0, 21.25], [94.47, 21.47], [94.32, 21.82], [93.97, 21.97], [93.75, 22.5], [93.85, 22.75], [93.75, 23.0]]]]}, "2025-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[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], [94.35, 24.75], [94.25, 25.0], [94.47, 25.53], [95.0, 25.75], [95.25, 25.65], [95.5, 25.75], [96.03, 25.53], [96.18, 25.18], [96.53, 25.03], [96.75, 24.5], [96.65, 24.25], [96.75, 24.0], [96.53, 23.47], [96.18, 23.32], [96.15, 23.25], [96.18, 23.18], [96.53, 23.03], [96.75, 22.5], [96.53, 21.97], [96.0, 21.75], [95.5, 21.96], [95.0, 21.75], [94.75, 21.85], [94.5, 21.75], [93.97, 21.97], [93.75, 22.5], [93.85, 22.75], [93.75, 23.0]]]]}, "2025-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[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], [94.35, 24.75], [94.25, 25.0], [94.47, 25.53], [95.0, 25.75], [95.25, 25.65], [95.5, 25.75], [96.03, 25.53], [96.18, 25.18], [96.53, 25.03], [96.75, 24.5], [96.65, 24.25], [96.75, 24.0], [96.53, 23.47], [96.18, 23.32], [96.15, 23.25], [96.18, 23.18], [96.53, 23.03], [96.75, 22.5], [96.53, 21.97], [96.0, 21.75], [95.47, 21.97], [95.32, 22.32], [95.25, 22.35], [95.18, 22.32], [95.03, 21.97], [94.5, 21.75], [93.97, 21.97], [93.75, 22.5], [93.85, 22.75], [93.75, 23.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.752617282789629}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8753068524469498}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.175527191162132, 28.27494922214089, 26.61298876161925, 26.402267261579993, 26.013452148437523]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.175527191162132, 27.37718989054366, 25.409556325276696, 25.17362238566085, 24.8944081624349]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6054360977740885, -1.7070669331680317, -1.818916389924946, -1.8296863962980163, -2.0356297644742973]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6054360977740885, -1.9212813555270714, -2.752617282789629, -2.0884775054266242, -2.383516139510391]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3271042287642636, -1.4835913818111364, -1.6304862228432677, -1.5754073690134807, -1.653871426372953]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3271042287642636, -1.5253063681674421, -2.0384629036914634, -1.8122315597068281, -1.8704933286882197]}}