{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:25.294926", "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-Sep-25_to_2013-Sep-30_120.0_-10.0"}, "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": 2013090001151}, "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": "September 25 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 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": 106078.46585922842}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "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": ["Indian Ocean"]}, "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": -10.0}, "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": 116.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 121.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.0, -9.25], [120.53, -9.47], [120.75, -10.0], [120.53, -10.53], [120.0, -10.75], [119.47, -10.53], [119.25, -10.0], [119.47, -9.47], [120.0, -9.25]]]]}, "2013-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, -10.47], [118.5, -10.25], [118.75, -10.35], [119.0, -10.25], [119.25, -10.35], [119.38, -10.3], [119.25, -10.0], [119.47, -9.47], [120.0, -9.25], [120.53, -9.47], [120.75, -10.0], [120.54, -10.5], [120.75, -11.0], [120.65, -11.25], [120.75, -11.5], [120.53, -12.03], [120.0, -12.25], [119.75, -12.15], [119.68, -12.18], [119.53, -12.53], [119.0, -12.75], [118.47, -12.53], [118.32, -12.18], [117.97, -12.03], [117.75, -11.5], [117.85, -11.25], [117.75, -11.0], [117.97, -10.47]]]]}, "2013-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.35, -11.25], [116.25, -11.0], [116.47, -10.47], [116.82, -10.32], [116.97, -9.97], [117.5, -9.75], [117.75, -9.85], [118.0, -9.75], [118.25, -9.85], [118.5, -9.75], [119.0, -9.96], [119.32, -9.82], [119.47, -9.47], [120.0, -9.25], [120.25, -9.35], [120.5, -9.25], [121.03, -9.47], [121.25, -10.0], [121.13, -10.3], [121.53, -10.47], [121.75, -11.0], [121.65, -11.25], [121.75, -11.5], [121.53, -12.03], [121.18, -12.18], [121.03, -12.53], [120.5, -12.75], [120.25, -12.65], [120.0, -12.75], [119.75, -12.65], [119.5, -12.75], [119.25, -12.65], [119.18, -12.68], [119.03, -13.03], [118.5, -13.25], [118.25, -13.15], [118.0, -13.25], [117.47, -13.03], [117.32, -12.68], [117.25, -12.65], [117.0, -12.75], [116.47, -12.53], [116.25, -12.0], [116.35, -11.75], [116.25, -11.5], [116.35, -11.25]]]]}, "2013-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.35, -11.25], [116.25, -11.0], [116.47, -10.47], [116.82, -10.32], [116.97, -9.97], [117.5, -9.75], [117.75, -9.85], [118.0, -9.75], [118.25, -9.85], [118.5, -9.75], [119.0, -9.96], [119.32, -9.82], [119.47, -9.47], [120.0, -9.25], [120.25, -9.35], [120.5, -9.25], [121.03, -9.47], [121.25, -10.0], [121.13, -10.3], [121.53, -10.47], [121.75, -11.0], [121.65, -11.25], [121.75, -11.5], [121.53, -12.03], [121.18, -12.18], [121.03, -12.53], [120.5, -12.75], [120.25, -12.65], [120.0, -12.75], [119.75, -12.65], [119.5, -12.75], [119.25, -12.65], [119.18, -12.68], [119.03, -13.03], [118.5, -13.25], [118.25, -13.15], [118.0, -13.25], [117.47, -13.03], [117.32, -12.68], [117.25, -12.65], [117.0, -12.75], [116.47, -12.53], [116.25, -12.0], [116.35, -11.75], [116.25, -11.5], [116.35, -11.25]]]]}, "2013-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.35, -11.25], [116.25, -11.0], [116.47, -10.47], [116.82, -10.32], [116.97, -9.97], [117.5, -9.75], [117.75, -9.85], [118.0, -9.75], [118.25, -9.85], [118.5, -9.75], [119.0, -9.96], [119.32, -9.82], [119.47, -9.47], [120.0, -9.25], [120.25, -9.35], [120.5, -9.25], [121.03, -9.47], [121.25, -10.0], [121.13, -10.3], [121.53, -10.47], [121.75, -11.0], [121.65, -11.25], [121.75, -11.5], [121.53, -12.03], [121.18, -12.18], [121.03, -12.53], [120.5, -12.75], [120.25, -12.65], [120.0, -12.75], 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25.48848779177581, 25.424179865561882, 23.952018265224126]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.91082838319045, 23.863085565378924, 23.19538821627765, 23.37723218411918, 23.623747387198875, 23.952018265224126]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0981799236484449, -0.8349140704037665, -0.9133180122555895, -0.9178806101250302, -1.0054599194043785, -1.2121283144115864]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0981799236484449, -1.163067029258798, -1.8606782854795938, -1.7150272588716007, -1.5115754489270898, -1.2121283144115864]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4197699121436458, -1.3599730322015586, -1.4763092352281264, -1.436254112536667, -1.526508532334276, -1.5096692419522408]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4197699121436458, -1.4980269698394726, -2.42720149827379, -2.221672300470884, -2.363017796330231, -1.5096692419522408]}}