{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:08.497359", "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": "2013-Aug-16_to_2013-Aug-21_120.5_16.5"}, "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": 2013080000780}, "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": "August 16 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2013"}, "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": 59303.76806954092}, "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": ["Philippine Sea", "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": 16.5}, "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": 120.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 121.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.5, 19.25], [121.03, 19.03], [121.25, 18.5], [121.03, 17.97], [120.5, 17.75], [119.97, 17.97], [119.75, 18.5], [119.97, 19.03], [120.5, 19.25]]]]}, "2013-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.85, 18.25], [119.75, 18.5], [119.97, 19.03], [120.5, 19.25], [121.03, 19.03], [121.18, 18.68], [121.53, 18.53], [121.75, 18.0], [121.53, 17.47], [121.18, 17.32], [121.03, 16.97], [120.5, 16.75], [119.97, 16.97], [119.75, 17.5], [119.85, 17.75], [119.75, 18.0], [119.85, 18.25]]]]}, "2013-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.35, 15.75], [119.25, 16.0], [119.47, 16.53], [119.82, 16.68], [119.85, 16.75], [119.75, 17.0], [119.85, 17.25], [119.75, 17.5], [119.85, 17.75], [119.75, 18.0], [119.85, 18.25], [119.75, 18.5], [119.97, 19.03], [120.5, 19.25], [121.03, 19.03], [121.18, 18.68], [121.53, 18.53], [121.75, 18.0], [121.65, 17.75], [121.75, 17.5], [121.65, 17.25], [121.75, 17.0], [121.65, 16.75], [121.68, 16.68], [122.03, 16.53], [122.25, 16.0], [122.15, 15.75], [122.25, 15.5], [122.03, 14.97], [121.68, 14.82], [121.53, 14.47], [121.0, 14.25], [120.75, 14.35], [120.5, 14.25], [120.25, 14.35], [120.0, 14.25], [119.47, 14.47], [119.25, 15.0], [119.35, 15.25], [119.25, 15.5], [119.35, 15.75]]]]}, "2013-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.35, 15.75], [119.25, 16.0], [119.47, 16.53], [119.82, 16.68], [119.85, 16.75], [119.75, 17.0], [119.85, 17.25], [119.75, 17.5], [119.85, 17.75], [119.75, 18.0], [119.85, 18.25], [119.75, 18.5], [119.97, 19.03], [120.5, 19.25], [121.03, 19.03], [121.18, 18.68], [121.53, 18.53], [121.75, 18.0], [121.65, 17.75], [121.75, 17.5], [121.65, 17.25], [121.75, 17.0], [121.65, 16.75], [121.68, 16.68], [122.03, 16.53], [122.25, 16.0], [122.15, 15.75], [122.25, 15.5], [122.03, 14.97], [121.68, 14.82], [121.53, 14.47], [121.0, 14.25], [120.75, 14.35], [120.5, 14.25], [120.25, 14.35], [120.0, 14.25], [119.47, 14.47], [119.25, 15.0], [119.35, 15.25], [119.25, 15.5], [119.35, 15.75]]]]}, "2013-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.35, 15.75], [119.25, 16.0], [119.47, 16.53], [119.82, 16.68], [119.85, 16.75], [119.75, 17.0], [119.85, 17.25], [119.75, 17.5], [119.85, 17.75], [119.75, 18.0], [119.85, 18.25], [119.75, 18.5], [119.97, 19.03], [120.5, 19.25], [121.03, 19.03], [121.18, 18.68], [121.53, 18.53], [121.75, 18.0], [121.65, 17.75], [121.75, 17.5], [121.65, 17.25], [121.75, 17.0], [121.65, 16.75], [121.68, 16.68], [122.03, 16.53], [122.25, 16.0], [122.15, 15.75], [122.25, 15.5], [122.03, 14.97], [121.68, 14.82], [121.53, 14.47], [121.0, 14.25], [120.75, 14.35], [120.5, 14.25], [120.25, 14.35], [120.0, 14.25], [119.47, 14.47], [119.25, 15.0], [119.35, 15.25], [119.25, 15.5], [119.35, 15.75]]]]}, "2013-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.97, 17.53], [120.5, 17.75], [121.03, 17.53], [121.25, 17.0], [121.15, 16.75], [121.18, 16.68], [121.53, 16.53], [121.75, 16.0], [121.53, 15.47], [121.0, 15.25], [120.47, 15.47], [120.32, 15.82], [119.97, 15.97], [119.75, 16.5], [119.85, 16.75], [119.75, 17.0], [119.97, 17.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.4278777064528185}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5383440695589172}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.24310234053172, 24.8461533609825, 23.82668839431767, 23.6416706275902, 23.486824332360015, 23.199936810875442]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.24310234053172, 22.057590400924312, 18.939734884699874, 18.985697953357203, 18.922909118494886, 22.583621306325767]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1924711144870912, -1.2038809092828586, -1.4261676036330955, -1.5736509729785553, -1.716076631029003, -1.4271659418582583]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.1924711144870912, -1.4841087994695954, -2.0548485446574887, -2.175433709098513, -2.4278777064528185, -1.6564341780726863]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2824179279413366, -1.502336119942563, -1.6181441546672442, -1.7921454486250261, -1.9814761539850818, -1.6950518653386506]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2824179279413366, -1.7229083568749641, -2.3724570547286286, -2.051466872919112, -2.544603120039696, -1.7584253077215188]}}