{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:29.567227", "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": "2023-Oct-06_to_2023-Oct-11_98.0_16.0"}, "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": 2023100000175}, "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 06 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 11 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 56266.75231114272}, "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", "Thailand"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 16.0}, "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": 98.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "98.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 96.5}, "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": 15.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[96.97, 15.97], [96.8, 16.38], [96.5, 16.25], [95.97, 16.47], [95.75, 17.0], [95.97, 17.53], [96.32, 17.68], [96.47, 18.03], [97.0, 18.25], [97.25, 18.15], [97.32, 18.18], [97.47, 18.53], [98.0, 18.75], [98.53, 18.53], [98.68, 18.18], [98.75, 18.15], [99.0, 18.25], [99.53, 18.03], [99.75, 17.5], [99.53, 16.97], [99.18, 16.82], [99.15, 16.75], [99.25, 16.5], [99.15, 16.25], [99.25, 16.0], [99.15, 15.75], [99.25, 15.5], [99.15, 15.25], [99.25, 15.0], [99.03, 14.47], [98.5, 14.25], [98.25, 14.35], [98.0, 14.25], [97.47, 14.47], [97.25, 15.0], [97.35, 15.25], [97.25, 15.5], [97.35, 15.75], [97.32, 15.82], [96.97, 15.97]]]]}}, "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": {"2023-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.25, 15.5], [97.35, 15.75], [97.25, 16.0], [97.47, 16.53], [98.0, 16.75], [98.53, 16.53], [98.68, 16.18], [99.03, 16.03], [99.25, 15.5], [99.15, 15.25], [99.25, 15.0], [99.03, 14.47], [98.5, 14.25], [98.25, 14.35], [98.0, 14.25], [97.47, 14.47], [97.25, 15.0], [97.35, 15.25], [97.25, 15.5]]]]}, "2023-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.47, 18.03], [97.0, 18.25], [97.25, 18.15], [97.5, 18.25], [97.75, 18.15], [98.0, 18.25], [98.53, 18.03], [98.68, 17.68], [99.03, 17.53], [99.25, 17.0], [99.15, 16.75], [99.25, 16.5], [99.15, 16.25], [99.25, 16.0], [99.15, 15.75], [99.25, 15.5], [99.15, 15.25], [99.25, 15.0], [99.03, 14.47], [98.5, 14.25], [98.25, 14.35], [98.0, 14.25], [97.47, 14.47], [97.25, 15.0], [97.35, 15.25], [97.25, 15.5], [97.35, 15.75], [97.32, 15.82], [96.97, 15.97], [96.8, 16.38], [96.5, 16.25], [95.97, 16.47], [95.75, 17.0], [95.97, 17.53], [96.32, 17.68], [96.47, 18.03]]]]}, "2023-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.47, 18.03], [97.0, 18.25], [97.25, 18.15], [97.32, 18.18], [97.47, 18.53], [98.0, 18.75], [98.53, 18.53], [98.75, 18.0], [98.65, 17.75], [98.68, 17.68], [99.03, 17.53], [99.25, 17.0], [99.15, 16.75], [99.25, 16.5], [99.15, 16.25], [99.25, 16.0], [99.15, 15.75], [99.25, 15.5], [99.15, 15.25], [99.25, 15.0], [99.03, 14.47], [98.5, 14.25], [98.25, 14.35], [98.0, 14.25], [97.47, 14.47], [97.25, 15.0], [97.35, 15.25], [97.25, 15.5], [97.35, 15.75], [97.32, 15.82], [96.97, 15.97], [96.8, 16.38], [96.5, 16.25], [95.97, 16.47], [95.75, 17.0], [95.97, 17.53], [96.32, 17.68], [96.47, 18.03]]]]}, "2023-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.47, 18.03], [97.0, 18.25], [97.25, 18.15], [97.32, 18.18], [97.47, 18.53], [98.0, 18.75], [98.53, 18.53], [98.68, 18.18], [98.75, 18.15], [99.0, 18.25], [99.53, 18.03], [99.75, 17.5], [99.53, 16.97], [99.18, 16.82], [99.15, 16.75], [99.25, 16.5], [99.15, 16.25], [99.25, 16.0], [99.15, 15.75], [99.25, 15.5], [99.03, 14.97], [98.5, 14.75], [97.97, 14.97], [97.82, 15.32], [97.47, 15.47], [97.32, 15.82], [96.97, 15.97], [96.8, 16.38], [96.5, 16.25], [95.97, 16.47], [95.75, 17.0], [95.97, 17.53], [96.32, 17.68], [96.47, 18.03]]]]}, "2023-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.47, 18.03], [97.0, 18.25], [97.3, 18.13], [97.47, 18.53], [98.0, 18.75], [98.53, 18.53], [98.68, 18.18], [98.75, 18.15], [99.0, 18.25], [99.53, 18.03], [99.75, 17.5], [99.53, 16.97], [99.18, 16.82], [99.15, 16.75], [99.25, 16.5], [99.15, 16.25], [99.25, 16.0], [99.03, 15.47], [98.5, 15.25], [98.25, 15.35], [98.0, 15.25], [97.47, 15.47], [97.32, 15.82], [96.97, 15.97], [96.8, 16.38], [96.5, 16.25], [95.97, 16.47], [95.75, 17.0], [95.97, 17.53], [96.32, 17.68], [96.47, 18.03]]]]}, "2023-10-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.5, 16.75], [97.97, 16.97], [97.75, 17.5], [97.97, 18.03], [98.5, 18.25], [98.75, 18.15], [99.0, 18.25], [99.53, 18.03], [99.75, 17.5], [99.53, 16.97], [99.0, 16.75], [98.75, 16.85], [98.5, 16.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.268043352869313}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5078689751873364}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.65827909405988, 24.946849647473414, 24.47363462392906, 24.49039583194633, 24.99711645884588, 23.6259554920328]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.85166993743195, 23.61376921127959, 22.698418575828953, 22.406407697400937, 22.039133122748183, 22.360421732294128]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.220737397844846, -1.4307963681398341, -1.7710715306158336, -1.659921213222816, -1.218171599826609, -1.1268234016618806]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4357894847786952, -2.0539688102151104, -2.268043352869313, -2.2521685298497687, -1.537502908859949, -1.2064292220448465]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7610356229369413, -1.8921734141910753, -2.355744183545371, -2.1090181412218207, -1.5205483673896198, -1.17198097740966]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1201603625811978, -2.558288393752082, -2.833586586554472, -2.8531366373792912, -1.7644208737296945, -1.2035358235048927]}}