{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:36.437242", "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": "2010-Sep-07_to_2010-Sep-11_40.0_-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": 2010090000380}, "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": "September 07 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 11 2010"}, "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": 68656.78667729264}, "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": ["Mozambique"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, -16.0], [37.47, -15.47], [38.0, -15.25], [38.25, -15.35], [38.5, -15.25], [38.75, -15.35], [38.82, -15.32], [38.97, -14.97], [39.32, -14.82], [39.47, -14.47], [40.0, -14.25], [40.25, -14.35], [40.5, -14.25], [41.03, -14.47], [41.25, -15.0], [41.03, -15.53], [40.68, -15.68], [40.53, -16.03], [40.18, -16.18], [40.03, -16.53], [39.68, -16.68], [39.53, -17.03], [39.0, -17.25], [38.75, -17.15], [38.5, -17.25], [37.97, -17.03], [37.82, -16.68], [37.47, -16.53], [37.25, -16.0]]]]}, "2010-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, -16.0], [37.47, -15.47], [37.82, -15.32], [37.97, -14.97], [38.32, -14.82], [38.35, -14.75], [38.32, -14.68], [37.97, -14.53], [37.75, -14.0], [37.97, -13.47], [38.5, -13.25], [38.75, -13.35], [39.0, -13.25], [39.25, -13.35], [39.5, -13.25], [40.03, -13.47], [40.18, -13.82], [40.53, -13.97], [40.68, -14.32], [41.03, -14.47], [41.25, -15.0], [41.03, -15.53], [40.68, -15.68], [40.53, -16.03], [40.18, -16.18], [40.03, -16.53], [39.68, -16.68], [39.53, -17.03], [39.0, -17.25], [38.75, -17.15], [38.5, -17.25], [37.97, -17.03], [37.82, -16.68], [37.47, -16.53], [37.25, -16.0]]]]}, "2010-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, -16.0], [37.47, -15.47], [37.82, -15.32], [37.97, -14.97], [38.32, -14.82], [38.35, -14.75], [38.32, -14.68], [37.97, -14.53], [37.75, -14.0], [37.97, -13.47], [38.32, -13.32], [38.47, -12.97], [39.0, -12.75], [39.25, -12.85], [39.5, -12.75], [40.03, -12.97], [40.18, -13.32], [40.53, -13.47], [40.75, -14.0], [40.65, -14.25], [40.68, -14.32], [41.03, -14.47], [41.25, -15.0], [41.03, -15.53], [40.68, -15.68], [40.53, -16.03], [40.18, -16.18], [40.03, -16.53], [39.68, -16.68], [39.53, -17.03], [39.0, -17.25], [38.75, -17.15], [38.5, -17.25], [37.97, -17.03], [37.82, -16.68], [37.47, -16.53], [37.25, -16.0]]]]}, "2010-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -14.97], [38.32, -14.82], [38.35, -14.75], [38.32, -14.68], [37.97, -14.53], [37.75, -14.0], [37.97, -13.47], [38.32, -13.32], [38.47, -12.97], [39.0, -12.75], [39.25, -12.85], [39.5, -12.75], [40.03, -12.97], [40.18, -13.32], [40.53, -13.47], [40.75, -14.0], [40.65, -14.25], [40.68, -14.32], [41.03, -14.47], [41.25, -15.0], [41.03, -15.53], [40.68, -15.68], [40.53, -16.03], [40.18, -16.18], [40.03, -16.53], [39.68, -16.68], [39.53, -17.03], [39.0, -17.25], [38.75, -17.15], [38.5, -17.25], [37.97, -17.03], [37.75, -16.5], [37.96, -16.0], [37.75, -15.5], [37.97, -14.97]]]]}, "2010-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.32, -14.68], [37.97, -14.53], [37.75, -14.0], [37.97, -13.47], [38.32, -13.32], [38.47, -12.97], [39.0, -12.75], [39.25, -12.85], [39.5, -12.75], [40.03, -12.97], [40.18, -13.32], [40.53, -13.47], [40.75, -14.0], [40.65, -14.25], [40.75, -14.5], [40.65, -14.75], [40.75, -15.0], [40.53, -15.53], [40.18, -15.68], [40.03, -16.03], [39.5, -16.25], [39.25, -16.15], [39.0, -16.25], [38.75, -16.15], [38.5, -16.25], [37.97, -16.03], [37.75, -15.5], [37.97, -14.97], [38.32, -14.82], [38.35, -14.75], [38.32, -14.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.6792982772760183}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.046220149443906}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.36344006277477, 21.410310256508296, 21.16470147179183, 22.17265858357922, 21.80086895750395]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.198807284155123, 19.707624976705176, 19.95888543567804, 20.825265514047885, 20.590698009416087]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.230523211833338, -2.1315492275866488, -2.4780902209072733, -1.5054020812692073, -1.8684693183163972]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.1783927355677974, -3.6792982772760183, -3.081272505391155, -2.2975955801855434, -2.3233899719419924]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7314328557030763, -1.8331607580026568, -2.4549516416738366, -1.5043645845950573, -1.8940456110039012]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9801603242048267, -2.0381505059096137, -3.7303727304984577, -1.7469831032717344, -2.3571957127756473]}}