{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:18.690291", "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-Mar-25_to_2022-Mar-27_296.5_-16.5"}, "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": 2022030000818}, "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": "March 25 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 27 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 68222.95541971264}, "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": ["Bolivia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "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": -16.5}, "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": 296.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 297.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -15.47], [-65.68, -15.32], [-65.53, -14.97], [-65.18, -14.82], [-65.03, -14.47], [-64.5, -14.25], [-64.25, -14.35], [-64.0, -14.25], [-63.47, -14.47], [-63.25, -15.0], [-63.35, -15.25], [-63.32, -15.32], [-62.97, -15.47], [-62.82, -15.82], [-62.47, -15.97], [-62.25, -16.5], [-62.35, -16.75], [-62.25, -17.0], [-62.47, -17.53], [-62.82, -17.68], [-62.97, -18.03], [-63.5, -18.25], [-63.75, -18.15], [-64.0, -18.25], [-64.53, -18.03], [-64.68, -17.68], [-64.75, -17.65], [-65.0, -17.75], [-65.53, -17.53], [-65.68, -17.18], [-66.03, -17.03], [-66.25, -16.5], [-66.15, -16.25], [-66.25, -16.0], [-66.03, -15.47]]]]}, "2022-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -15.47], [-65.68, -15.32], [-65.53, -14.97], [-65.18, -14.82], [-65.03, -14.47], [-64.5, -14.25], [-64.25, -14.35], [-64.0, -14.25], [-63.47, -14.47], [-63.25, -15.0], [-63.35, -15.25], [-63.32, -15.32], [-62.97, -15.47], [-62.82, -15.82], [-62.47, -15.97], [-62.25, -16.5], [-62.35, -16.75], [-62.25, -17.0], [-62.47, -17.53], [-62.82, -17.68], [-62.97, -18.03], [-63.5, -18.25], [-63.75, -18.15], [-64.0, -18.25], [-64.53, -18.03], [-64.68, -17.68], [-64.75, -17.65], [-65.0, -17.75], [-65.53, -17.53], [-65.68, -17.18], [-66.03, -17.03], [-66.25, -16.5], [-66.15, -16.25], [-66.25, -16.0], [-66.03, -15.47]]]]}, "2022-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -15.47], [-65.68, -15.32], [-65.53, -14.97], [-65.18, -14.82], [-65.03, -14.47], [-64.5, -14.25], [-64.25, -14.35], [-64.0, -14.25], [-63.47, -14.47], [-63.25, -15.0], [-63.35, -15.25], [-63.32, -15.32], [-62.97, -15.47], [-62.82, -15.82], [-62.47, -15.97], [-62.25, -16.5], [-62.35, -16.75], [-62.25, -17.0], [-62.47, -17.53], [-62.82, -17.68], [-62.97, -18.03], [-63.5, -18.25], [-63.75, -18.15], [-64.0, -18.25], [-64.53, -18.03], [-64.68, -17.68], [-64.75, -17.65], [-65.0, -17.75], [-65.53, -17.53], [-65.68, -17.18], [-66.03, -17.03], [-66.25, -16.5], [-66.15, -16.25], [-66.25, -16.0], [-66.03, -15.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.937909809304301}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.5815019205043184}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.06844326075776, 20.691566444040518, 23.26850840432911]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.768220003150702, 19.460521687104972, 22.093169292135087]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.5151933617122197, -4.898437675428573, -2.330874724372163]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.6206960505825805, -5.937909809304301, -2.7138911727936943]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.4733195467730202, -3.474403888468808, -1.6250765902945938]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.529827860866565, -4.650912112414438, -1.931541778310549]}}