{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:28.623330", "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": "2010-Apr-29_to_2010-May-02_120.0_17.0"}, "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": 2010040000830}, "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": "April 29 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2010"}, "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": 55942.65355037898}, "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": ["Philippines"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.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": ["South China 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": 17.0}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 118.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[118.47, 18.03], [119.0, 18.25], [119.25, 18.15], [119.5, 18.25], [120.03, 18.03], [120.18, 17.68], [120.53, 17.53], [120.75, 17.0], [120.65, 16.75], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.75, 15.85], [119.5, 15.75], [118.97, 15.97], [118.82, 16.32], [118.47, 16.47], [118.25, 17.0], [118.35, 17.25], [118.25, 17.5], [118.47, 18.03]]]]}, "2010-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, 18.53], [118.5, 18.75], [118.75, 18.65], [118.82, 18.68], [118.97, 19.03], [119.32, 19.18], [119.47, 19.53], [120.0, 19.75], [120.25, 19.65], [120.5, 19.75], [121.03, 19.53], [121.25, 19.0], [121.04, 18.5], [121.25, 18.0], [121.15, 17.75], [121.25, 17.5], [121.03, 16.97], [120.68, 16.82], [120.65, 16.75], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.75, 15.85], [119.5, 15.75], [118.97, 15.97], [118.82, 16.32], [118.47, 16.47], [118.32, 16.82], [117.97, 16.97], [117.75, 17.5], [117.85, 17.75], [117.75, 18.0], [117.97, 18.53]]]]}, "2010-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, 18.53], [118.5, 18.75], [118.75, 18.65], [118.82, 18.68], [118.97, 19.03], [119.32, 19.18], [119.47, 19.53], [120.0, 19.75], [120.25, 19.65], [120.5, 19.75], [121.03, 19.53], [121.25, 19.0], [121.04, 18.5], [121.25, 18.0], [121.15, 17.75], [121.25, 17.5], [121.03, 16.97], [120.68, 16.82], [120.65, 16.75], [120.75, 16.5], [120.53, 15.97], [120.0, 15.75], [119.75, 15.85], [119.5, 15.75], [118.97, 15.97], [118.82, 16.32], [118.47, 16.47], [118.32, 16.82], [117.97, 16.97], [117.75, 17.5], [117.85, 17.75], [117.75, 18.0], [117.97, 18.53]]]]}, "2010-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, 18.53], [118.5, 18.75], [118.75, 18.65], [118.82, 18.68], [118.97, 19.03], [119.32, 19.18], [119.47, 19.53], [120.0, 19.75], [120.25, 19.65], [120.5, 19.75], [121.03, 19.53], [121.25, 19.0], [121.04, 18.5], [121.25, 18.0], [121.15, 17.75], [121.25, 17.5], [121.03, 16.97], [120.68, 16.82], [120.53, 16.47], [120.0, 16.25], [119.75, 16.35], [119.5, 16.25], [119.25, 16.35], [119.0, 16.25], [118.47, 16.47], [118.32, 16.82], [117.97, 16.97], [117.75, 17.5], [117.85, 17.75], [117.75, 18.0], [117.97, 18.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.9868338266662136}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.2661280052232178}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.46297648461541, 26.642167303967142, 26.903080541030135, 26.885321985536223]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.062348638632045, 25.953234242514725, 26.440076203233446, 26.37285246884261]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.924878233348222, -1.4450998767872114, -1.2368445128670702, -1.2393438404100352]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0718157868731168, -1.9868338266662136, -1.6725420540931282, -1.6653659727093668]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4912434360757227, -2.2147217474635177, -1.9103859067948075, -1.8214618492010368]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6837963386145234, -2.983105944950488, -3.0708172716032225, -2.444766109082275]}}