{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:11.222118", "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": "2015-Jun-25_to_2015-Jun-28_319.5_-17.0"}, "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": 2015060000942}, "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 25 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2015"}, "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": 74116.72342491042}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -17.0}, "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": 319.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "319.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 316.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 320.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.5, -16.25], [-39.97, -16.47], [-39.75, -17.0], [-39.97, -17.53], [-40.5, -17.75], [-41.03, -17.53], [-41.25, -17.0], [-41.03, -16.47], [-40.5, -16.25]]]]}, "2015-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.5, -14.75], [-42.25, -14.85], [-42.0, -14.75], [-41.75, -14.85], [-41.68, -14.82], [-41.53, -14.47], [-41.18, -14.32], [-41.03, -13.97], [-40.5, -13.75], [-39.97, -13.97], [-39.75, -14.5], [-39.97, -15.03], [-40.32, -15.18], [-40.35, -15.25], [-40.25, -15.5], [-40.35, -15.75], [-40.32, -15.82], [-39.97, -15.97], [-39.82, -16.32], [-39.47, -16.47], [-39.25, -17.0], [-39.35, -17.25], [-39.25, -17.5], [-39.47, -18.03], [-40.0, -18.25], [-40.25, -18.15], [-40.5, -18.25], [-40.75, -18.15], [-40.82, -18.18], [-40.97, -18.53], [-41.5, -18.75], [-42.03, -18.53], [-42.25, -18.0], [-42.15, -17.75], [-42.18, -17.68], [-42.53, -17.53], [-42.75, -17.0], [-42.65, -16.75], [-42.68, -16.68], [-42.75, -16.65], [-43.0, -16.75], [-43.53, -16.53], [-43.75, -16.0], [-43.53, -15.47], [-43.18, -15.32], [-43.03, -14.97], [-42.5, -14.75]]]]}, "2015-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.5, -14.75], [-42.25, -14.85], [-42.0, -14.75], [-41.75, -14.85], [-41.68, -14.82], [-41.53, -14.47], [-41.18, -14.32], [-41.03, -13.97], [-40.5, -13.75], [-39.97, -13.97], [-39.75, -14.5], [-39.97, -15.03], [-40.32, -15.18], [-40.35, -15.25], [-40.25, -15.5], [-40.35, -15.75], [-40.32, -15.82], [-39.97, -15.97], [-39.82, -16.32], [-39.47, -16.47], [-39.25, -17.0], [-39.35, -17.25], [-39.25, -17.5], [-39.47, -18.03], [-40.0, -18.25], [-40.25, -18.15], [-40.5, -18.25], [-40.75, -18.15], [-40.82, -18.18], [-40.97, -18.53], [-41.5, -18.75], [-42.03, -18.53], [-42.25, -18.0], [-42.15, -17.75], [-42.18, -17.68], [-42.53, -17.53], [-42.75, -17.0], [-42.65, -16.75], [-42.68, -16.68], [-42.75, -16.65], [-43.0, -16.75], [-43.53, -16.53], [-43.75, -16.0], [-43.53, -15.47], [-43.18, -15.32], [-43.03, -14.97], [-42.5, -14.75]]]]}, "2015-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.5, -14.75], [-42.25, -14.85], [-42.0, -14.75], [-41.75, -14.85], [-41.68, -14.82], [-41.53, -14.47], [-41.18, -14.32], [-41.03, -13.97], [-40.5, -13.75], [-39.97, -13.97], [-39.75, -14.5], [-39.97, -15.03], [-40.32, -15.18], [-40.35, -15.25], [-40.25, -15.5], [-40.35, -15.75], [-40.32, -15.82], [-39.97, -15.97], [-39.82, -16.32], [-39.47, -16.47], [-39.25, -17.0], [-39.35, -17.25], [-39.25, -17.5], [-39.47, -18.03], [-40.0, -18.25], [-40.25, -18.15], [-40.5, -18.25], [-40.75, -18.15], [-40.82, -18.18], [-40.97, -18.53], [-41.5, -18.75], [-42.03, -18.53], [-42.25, -18.0], [-42.15, -17.75], [-42.18, -17.68], [-42.53, -17.53], [-42.75, -17.0], [-42.65, -16.75], [-42.68, -16.68], [-42.75, -16.65], [-43.0, -16.75], [-43.53, -16.53], [-43.75, -16.0], [-43.53, -15.47], [-43.18, -15.32], [-43.03, -14.97], [-42.5, -14.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.945756233385339}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0568966213696824}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.269871506420202, 18.223714898791854, 17.87603353851057, 18.24983652470621]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.269871506420202, 15.592481702669204, 15.54703753598875, 16.340397014300322]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.6035255659622294, -1.988987502016821, -2.302303444140041, -1.8975337601684827]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6035255659622294, -2.917914052409742, -2.945756233385339, -2.4825554787026363]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.211500929809602, -1.6900696750823518, -1.9992963194011149, -1.7324382700953649]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.211500929809602, -2.2007614721086535, -2.2468110920886626, -2.201068057864076]}}