{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:53.334957", "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-Jun-15_to_2022-Jun-18_109.0_-1.0"}, "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": 2022060000684}, "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": "June 15 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 2022"}, "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": 157585.6599489297}, "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"]}, "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": ["Java 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": -1.0}, "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": 109.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "109.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 107.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 110.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[110.0, 1.75], [110.53, 1.53], [110.75, 1.0], [110.65, 0.75], [110.68, 0.68], [111.03, 0.53], [111.25, 0.0], [111.15, 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"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": {"2022-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.25, -0.5], [106.47, 0.03], [107.0, 0.25], [107.25, 0.15], [107.32, 0.18], [107.35, 0.25], [107.32, 0.32], [106.97, 0.47], [106.75, 1.0], [106.85, 1.25], [106.75, 1.5], [106.97, 2.03], [107.32, 2.18], [107.47, 2.53], [108.0, 2.75], [108.25, 2.65], [108.5, 2.75], [108.75, 2.65], [109.0, 2.75], [109.53, 2.53], [109.75, 2.0], [109.53, 1.47], [109.18, 1.32], [109.15, 1.25], [109.25, 1.0], [109.15, 0.75], [109.18, 0.68], [109.53, 0.53], [109.75, 0.0], [109.54, -0.5], [109.68, -0.82], [110.03, -0.97], [110.25, -1.5], [110.15, -1.75], [110.25, -2.0], [110.15, -2.25], [110.25, -2.5], [110.03, -3.03], [109.5, -3.25], [109.25, -3.15], [109.18, -3.18], [109.03, -3.53], [108.5, -3.75], [108.25, -3.65], [108.0, 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22.90208098545878, 22.659135594121437, 22.89779004245179]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1510459596121543, -1.4788972657631625, -1.391860958787086, -1.404963854764631]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3755692641163364, -1.7702263868311547, -2.2003279613841187, -1.9112492920800719]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6396648379685421, -2.0296261091373204, -1.8711236158039763, -1.7308509339078186]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9018374612195, -2.4756061504990248, -2.4640919010398727, -2.18094355235203]}}