{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:33.013083", "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": "2022-Jul-09_to_2022-Jul-13_101.5_15.0"}, "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": 2022070000450}, "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 09 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 13 2022"}, "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": 126022.07129834908}, "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": ["Cambodia", "Thailand", "Viet Nam"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": 15.0}, "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": 101.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "101.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 101.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[107.0, 13.75], [107.53, 13.53], [107.75, 13.0], [107.53, 12.47], [107.0, 12.25], [106.75, 12.35], [106.63, 12.3], 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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": {"2022-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.5, 14.25], [100.97, 14.47], [100.75, 15.0], [100.97, 15.53], [101.5, 15.75], [101.75, 15.65], [102.0, 15.75], [102.25, 15.65], [102.5, 15.75], [103.03, 15.53], [103.25, 15.0], [103.03, 14.47], [102.5, 14.25], [102.25, 14.35], [102.0, 14.25], [101.75, 14.35], [101.5, 14.25]]]]}, "2022-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.97, 13.53], [106.5, 13.75], [106.75, 13.65], [107.0, 13.75], [107.53, 13.53], [107.75, 13.0], [107.53, 12.47], [107.0, 12.25], [106.75, 12.35], [106.63, 12.3], [106.75, 12.0], [106.53, 11.47], [106.0, 11.25], [105.47, 11.47], [105.25, 12.0], [105.47, 12.53], [105.88, 12.7], [105.75, 13.0], [105.97, 13.53]]], [[[102.0, 16.25], [102.25, 16.15], [102.5, 16.25], [103.03, 16.03], [103.18, 15.68], [103.53, 15.53], [103.75, 15.0], [103.53, 14.47], [103.0, 14.25], [102.75, 14.35], [102.5, 14.25], [102.25, 14.35], [102.0, 14.25], [101.75, 14.35], [101.5, 14.25], [100.97, 14.47], [100.75, 15.0], [100.97, 15.53], [101.32, 15.68], [101.47, 16.03], [102.0, 16.25]]]]}, "2022-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.47, 16.03], [102.0, 16.25], [102.25, 16.15], [102.5, 16.25], [102.75, 16.15], [103.0, 16.25], [103.25, 16.15], [103.5, 16.25], [103.75, 16.15], [104.0, 16.25], [104.25, 16.15], [104.5, 16.25], [105.03, 16.03], [105.25, 15.5], [105.15, 15.25], [105.18, 15.18], [105.53, 15.03], [105.68, 14.68], [106.03, 14.53], [106.18, 14.18], [106.53, 14.03], [106.68, 13.68], [106.75, 13.65], [107.0, 13.75], [107.53, 13.53], [107.75, 13.0], [107.53, 12.47], [107.0, 12.25], [106.75, 12.35], [106.63, 12.3], [106.75, 12.0], [106.65, 11.75], [106.75, 11.5], [106.53, 10.97], [106.0, 10.75], [105.47, 10.97], 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-1.8860268562515092}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.925887948154354, 26.447891730930394, 26.4629076918834, 26.228626739872993, 26.08517203897452]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.339073666929153, 24.9056510740495, 25.23194353496956, 24.833276414192426, 24.858344732131684]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6293208204116354, -1.7082208792209346, -1.6886348707281094, -1.9222917042934635, -2.1144696481268968]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.7200206164606016, -2.4331697203786575, -2.005944389375202, -2.567798167380772, -3.1023167594395886]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.442813743843548, -1.5350611098477995, -1.4647810197052293, -1.6786510353182995, -1.8086329433804533]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5872696190709017, -2.115596886263758, -1.7451428934606137, -2.204371098139003, -2.9292934823263397]}}