{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:30.769722", "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": "2021-May-04_to_2021-May-07_103.5_3.0"}, "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": 2021050000290}, "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": "May 04 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 07 2021"}, "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": 116878.92398785683}, "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": ["Malaysia"]}, "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": ["Gulf of Thailand", "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": 3.0}, "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": 103.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "103.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 101.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 104.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.35, 7.25], [101.25, 7.5], [101.47, 8.03], [101.82, 8.18], 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[104.53, 7.03], [104.68, 6.68], [105.03, 6.53], [105.25, 6.0], [105.04, 5.5], [105.25, 5.0], [105.15, 4.75], [105.25, 4.5], [105.15, 4.25], [105.25, 4.0], [105.03, 3.47], [104.68, 3.32], [104.65, 3.25], [104.75, 3.0], [104.53, 2.47], [104.0, 2.25], [103.75, 2.35], [103.5, 2.25], [102.97, 2.47], [102.75, 3.0], [102.85, 3.25], [102.75, 3.5], [102.85, 3.75], [102.82, 3.82], [102.47, 3.97], [102.32, 4.32], [101.97, 4.47], [101.82, 4.82], [101.47, 4.97], [101.25, 5.5], [101.46, 6.0], [101.25, 6.5], [101.35, 6.75], [101.25, 7.0], [101.35, 7.25]]]]}, "2021-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.35, 7.25], [101.25, 7.5], [101.47, 8.03], [101.82, 8.18], [101.97, 8.53], [102.5, 8.75], [103.03, 8.53], [103.2, 8.13], [103.5, 8.25], [104.03, 8.03], [104.25, 7.5], [104.15, 7.25], [104.18, 7.18], [104.53, 7.03], [104.68, 6.68], [105.03, 6.53], [105.25, 6.0], [105.04, 5.5], [105.25, 5.0], [105.15, 4.75], [105.25, 4.5], [105.15, 4.25], [105.25, 4.0], [105.03, 3.47], 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over entire duration", "value": -2.242974519487575}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.1625153364528975}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.087686941267407, 26.703584682688813, 26.741301944524253, 25.46385053197747]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.745652068222796, 24.412287950494544, 23.93932391892821, 24.18968831975741]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0179877187664421, -1.2371791316403729, -1.2133347718491172, -1.1916305842847124]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2808061721569857, -1.7053459843644418, -2.242974519487575, -1.366621786560188]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6179416197320737, -1.9355080454656504, -1.880862022538439, -1.4232145090915895]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0463209498033104, -2.548067474591136, -2.8580625810780753, -1.6869950765016644]}}