{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:00.164789", "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": "2011-Jul-07_to_2011-Jul-12_310.5_74.0"}, "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": 2011070002147}, "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": "July 07 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 12 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 89507.19310263822}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": 74.0}, "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": 310.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "310.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.25}, "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": 72.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 76.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.53, 73.47], [-50.75, 74.0], [-50.53, 74.53], [-50.0, 74.75], [-49.75, 74.65], [-49.5, 74.75], [-48.97, 74.53], [-48.75, 74.0], [-48.97, 73.47], [-49.5, 73.25], [-49.75, 73.35], [-50.0, 73.25], [-50.53, 73.47]]]]}, "2011-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.53, 73.47], [-50.75, 74.0], [-50.53, 74.53], [-50.0, 74.75], [-49.75, 74.65], [-49.5, 74.75], [-49.2, 74.63], [-49.03, 75.03], [-48.5, 75.25], [-47.97, 75.03], [-47.75, 74.5], [-47.97, 73.97], [-48.5, 73.75], [-48.8, 73.88], [-48.97, 73.47], [-49.5, 73.25], [-49.75, 73.35], [-50.0, 73.25], [-50.53, 73.47]]]]}, "2011-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.53, 73.47], [-50.75, 74.0], [-50.53, 74.53], [-50.0, 74.75], [-49.75, 74.65], [-49.5, 74.75], [-49.2, 74.63], [-49.03, 75.03], [-48.5, 75.25], [-48.25, 75.15], [-48.0, 75.25], [-47.47, 75.03], [-47.25, 74.5], [-47.47, 73.97], [-48.0, 73.75], [-48.25, 73.85], [-48.5, 73.75], [-48.8, 73.88], [-48.97, 73.47], [-49.5, 73.25], [-49.75, 73.35], [-50.0, 73.25], [-50.53, 73.47]]]]}, "2011-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.03, 75.53], [-50.5, 75.75], [-50.25, 75.65], [-50.18, 75.68], [-50.15, 75.75], [-50.25, 76.0], [-50.03, 76.53], [-49.5, 76.75], [-49.25, 76.65], [-49.0, 76.75], [-48.75, 76.65], [-48.5, 76.75], [-48.25, 76.65], [-48.0, 76.75], [-47.75, 76.65], [-47.5, 76.75], [-47.25, 76.65], [-47.0, 76.75], [-46.75, 76.65], [-46.5, 76.75], [-46.25, 76.65], [-46.0, 76.75], [-45.75, 76.65], [-45.5, 76.75], [-45.25, 76.65], [-45.0, 76.75], [-44.5, 76.54], [-44.0, 76.75], [-43.75, 76.65], [-43.5, 76.75], [-43.25, 76.65], [-43.0, 76.75], [-42.75, 76.65], [-42.5, 76.75], [-42.25, 76.65], [-42.0, 76.75], [-41.75, 76.65], [-41.5, 76.75], [-40.97, 76.53], [-40.82, 76.18], [-40.75, 76.15], [-40.5, 76.25], [-40.25, 76.15], [-40.0, 76.25], [-39.47, 76.03], [-39.25, 75.5], [-39.47, 74.97], [-40.0, 74.75], [-40.25, 74.85], [-40.5, 74.75], [-40.75, 74.85], [-41.0, 74.75], [-41.25, 74.85], [-41.5, 74.75], [-41.75, 74.85], [-42.0, 74.75], [-41.47, 74.53], [-41.32, 74.18], [-41.25, 74.15], [-41.0, 74.25], [-40.47, 74.03], [-40.25, 73.5], [-40.47, 72.97], [-41.0, 72.75], [-41.25, 72.85], [-41.5, 72.75], [-41.75, 72.85], [-42.0, 72.75], [-42.25, 72.85], [-42.32, 72.82], [-42.47, 72.47], [-43.0, 72.25], [-43.25, 72.35], [-43.5, 72.25], [-43.75, 72.35], [-44.0, 72.25], [-44.25, 72.35], [-44.5, 72.25], [-44.75, 72.35], [-45.0, 72.25], [-45.25, 72.35], [-45.5, 72.25], [-45.75, 72.35], [-46.0, 72.25], [-46.25, 72.35], [-46.5, 72.25], [-46.75, 72.35], [-47.0, 72.25], [-47.53, 72.47], [-47.68, 72.82], [-47.75, 72.85], [-48.0, 72.75], [-48.25, 72.85], [-48.5, 72.75], [-48.75, 72.85], [-49.0, 72.75], [-49.25, 72.85], [-49.5, 72.75], [-49.75, 72.85], [-50.0, 72.75], [-50.53, 72.97], [-50.75, 73.5], [-50.65, 73.75], [-50.68, 73.82], [-51.03, 73.97], [-51.25, 74.5], [-51.15, 74.75], [-51.25, 75.0], [-51.03, 75.53]], [[-42.25, 74.85], [-42.5, 74.75], [-42.25, 74.65], [-42.0, 74.75], [-42.25, 74.85]], [[-42.75, 74.85], [-43.0, 74.75], [-42.75, 74.65], [-42.5, 74.75], [-42.75, 74.85]], [[-43.25, 74.85], [-43.32, 74.82], [-43.35, 74.75], [-43.32, 74.68], [-43.25, 74.65], [-43.0, 74.75], [-43.25, 74.85]]]]}, "2011-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.03, 75.53], [-50.5, 75.75], [-50.25, 75.65], [-50.18, 75.68], [-50.15, 75.75], [-50.25, 76.0], [-50.03, 76.53], [-49.5, 76.75], [-49.25, 76.65], [-49.0, 76.75], [-48.75, 76.65], [-48.5, 76.75], [-48.25, 76.65], [-48.0, 76.75], [-47.75, 76.65], [-47.5, 76.75], [-47.25, 76.65], [-47.0, 76.75], [-46.75, 76.65], [-46.5, 76.75], [-46.25, 76.65], [-46.0, 76.75], [-45.75, 76.65], [-45.5, 76.75], [-45.25, 76.65], [-45.0, 76.75], [-44.5, 76.54], [-44.0, 76.75], [-43.75, 76.65], [-43.5, 76.75], [-43.25, 76.65], [-43.0, 76.75], [-42.75, 76.65], [-42.5, 76.75], [-42.25, 76.65], [-42.0, 76.75], [-41.75, 76.65], [-41.5, 76.75], [-40.97, 76.53], [-40.82, 76.18], [-40.75, 76.15], [-40.5, 76.25], [-40.25, 76.15], [-40.0, 76.25], [-39.47, 76.03], [-39.25, 75.5], [-39.47, 74.97], [-40.0, 74.75], [-40.25, 74.85], [-40.5, 74.75], [-40.75, 74.85], [-41.0, 74.75], [-41.25, 74.85], [-41.5, 74.75], [-41.75, 74.85], [-42.0, 74.75], [-41.47, 74.53], [-41.32, 74.18], [-41.25, 74.15], [-41.0, 74.25], [-40.47, 74.03], [-40.25, 73.5], [-40.47, 72.97], [-41.0, 72.75], [-41.25, 72.85], [-41.5, 72.75], [-41.75, 72.85], [-42.0, 72.75], [-42.25, 72.85], [-42.32, 72.82], [-42.47, 72.47], [-43.0, 72.25], [-43.25, 72.35], [-43.5, 72.25], [-43.75, 72.35], [-44.0, 72.25], [-44.25, 72.35], [-44.5, 72.25], [-44.75, 72.35], [-45.0, 72.25], [-45.25, 72.35], [-45.5, 72.25], [-45.75, 72.35], [-46.0, 72.25], [-46.25, 72.35], [-46.5, 72.25], [-46.75, 72.35], [-47.0, 72.25], [-47.53, 72.47], [-47.68, 72.82], [-47.75, 72.85], [-48.0, 72.75], [-48.25, 72.85], [-48.5, 72.75], [-48.75, 72.85], [-49.0, 72.75], [-49.25, 72.85], [-49.5, 72.75], [-49.75, 72.85], [-50.0, 72.75], [-50.53, 72.97], [-50.75, 73.5], [-50.65, 73.75], [-50.68, 73.82], [-51.03, 73.97], [-51.25, 74.5], [-51.15, 74.75], [-51.25, 75.0], [-51.03, 75.53]], [[-42.25, 74.85], [-42.5, 74.75], [-42.25, 74.65], [-42.0, 74.75], [-42.25, 74.85]], [[-42.75, 74.85], [-43.0, 74.75], [-42.75, 74.65], [-42.5, 74.75], [-42.75, 74.85]], [[-43.25, 74.85], [-43.32, 74.82], [-43.35, 74.75], [-43.32, 74.68], [-43.25, 74.65], [-43.0, 74.75], [-43.25, 74.85]]]]}, "2011-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.03, 75.53], [-50.5, 75.75], [-50.25, 75.65], [-50.18, 75.68], [-50.15, 75.75], [-50.25, 76.0], [-50.03, 76.53], [-49.5, 76.75], [-49.25, 76.65], [-49.0, 76.75], [-48.75, 76.65], [-48.5, 76.75], [-48.25, 76.65], [-48.0, 76.75], [-47.75, 76.65], [-47.5, 76.75], [-47.25, 76.65], [-47.0, 76.75], [-46.75, 76.65], [-46.5, 76.75], [-46.25, 76.65], [-46.0, 76.75], [-45.75, 76.65], [-45.5, 76.75], [-45.25, 76.65], [-45.0, 76.75], [-44.5, 76.54], [-44.0, 76.75], [-43.75, 76.65], [-43.5, 76.75], [-43.25, 76.65], [-43.0, 76.75], [-42.75, 76.65], [-42.5, 76.75], [-42.25, 76.65], [-42.0, 76.75], [-41.75, 76.65], [-41.5, 76.75], [-40.97, 76.53], [-40.82, 76.18], [-40.75, 76.15], [-40.5, 76.25], [-40.25, 76.15], [-40.0, 76.25], [-39.47, 76.03], [-39.25, 75.5], [-39.47, 74.97], [-40.0, 74.75], [-40.25, 74.85], [-40.5, 74.75], [-40.75, 74.85], [-41.0, 74.75], [-41.25, 74.85], [-41.5, 74.75], [-41.75, 74.85], [-42.0, 74.75], [-41.47, 74.53], [-41.32, 74.18], [-41.25, 74.15], [-41.0, 74.25], [-40.47, 74.03], [-40.25, 73.5], [-40.47, 72.97], [-41.0, 72.75], [-41.25, 72.85], [-41.5, 72.75], [-41.75, 72.85], [-42.0, 72.75], [-42.25, 72.85], [-42.32, 72.82], [-42.47, 72.47], [-43.0, 72.25], [-43.25, 72.35], [-43.5, 72.25], [-43.75, 72.35], [-44.0, 72.25], [-44.25, 72.35], [-44.5, 72.25], [-44.75, 72.35], [-45.0, 72.25], [-45.25, 72.35], [-45.5, 72.25], [-45.75, 72.35], [-46.0, 72.25], [-46.25, 72.35], [-46.5, 72.25], [-46.75, 72.35], [-47.0, 72.25], [-47.53, 72.47], [-47.68, 72.82], [-47.75, 72.85], [-48.0, 72.75], [-48.25, 72.85], [-48.5, 72.75], [-48.75, 72.85], [-49.0, 72.75], [-49.25, 72.85], [-49.5, 72.75], [-49.75, 72.85], [-50.0, 72.75], [-50.53, 72.97], [-50.75, 73.5], [-50.65, 73.75], [-50.68, 73.82], [-51.03, 73.97], [-51.25, 74.5], [-51.15, 74.75], [-51.25, 75.0], [-51.03, 75.53]], [[-42.25, 74.85], [-42.5, 74.75], [-42.25, 74.65], [-42.0, 74.75], [-42.25, 74.85]], [[-42.75, 74.85], [-43.0, 74.75], [-42.75, 74.65], [-42.5, 74.75], [-42.75, 74.85]], [[-43.25, 74.85], [-43.32, 74.82], [-43.35, 74.75], [-43.32, 74.68], [-43.25, 74.65], [-43.0, 74.75], [-43.25, 74.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.7028417715828255}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.600734877945313}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-4.359764099070674, -3.6518865348582494, -4.633990890192649, -5.392108251212051, -5.496112966299961, -5.2094485651422815]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-4.184800926217349, -2.756111745059286, -3.836131330573835, -2.6738731628022947, -2.735611009654292, -3.0025133043145047]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.5164719358781156, 4.4043942971864, 3.4829086806650196, 4.664869320582397, 4.490029857643929, 4.713625202541098]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.553137047118014, 4.741555606400084, 3.673656825509454, 5.489375613063771, 5.336522497891963, 5.7028417715828255]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4184649496587536, 1.6723687025761327, 1.248428486949657, 1.4567957506102491, 1.4228199279012748, 1.5030084116412723]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4210099030450294, 1.8155159559655307, 1.2527218534453737, 1.5375137758057358, 1.5508910739893433, 1.6285381467267306]}}