{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:29.625018", "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": "2013-May-28_to_2013-Jun-03_180.0_67.5"}, "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": 2013050002819}, "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 28 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 62089.493688966744}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Pacific-Ocean", "Russian-Arctic"]}, "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": []}, "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": 67.5}, "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": 180.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "180.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 177.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 187.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 64.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[179.47, 66.97], [179.25, 67.5], [179.47, 68.03], [180.0, 68.25], [180.0, 66.75], [179.47, 66.97]]], [[[-179.75, 68.15], [-179.5, 68.25], [-178.97, 68.03], [-178.75, 67.5], [-178.97, 66.97], [-179.5, 66.75], [-179.75, 66.85], [-180.0, 66.75], [-180.0, 68.25], [-179.75, 68.15]]]]}, "2013-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[178.47, 68.53], [179.0, 68.75], [179.25, 68.65], [179.5, 68.75], [180.0, 68.54], [180.0, 66.25], [179.75, 66.35], [179.5, 66.25], [179.25, 66.35], [179.0, 66.25], [178.47, 66.47], [178.25, 67.0], [178.46, 67.5], [178.25, 68.0], [178.47, 68.53]]], [[[-179.97, 68.53], [-179.82, 68.18], [-179.75, 68.15], [-179.5, 68.25], [-178.97, 68.03], [-178.75, 67.5], [-178.85, 67.25], [-178.82, 67.18], [-178.75, 67.15], [-178.5, 67.25], [-178.25, 67.15], [-178.0, 67.25], [-177.47, 67.03], [-177.25, 66.5], [-177.47, 65.97], [-178.0, 65.75], [-178.25, 65.85], [-178.5, 65.75], [-178.75, 65.85], [-179.0, 65.75], [-179.53, 65.97], [-179.68, 66.32], [-179.75, 66.35], [-180.0, 66.25], [-180.0, 68.54], [-179.97, 68.53]]]]}, "2013-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[178.32, 67.32], [177.97, 67.47], [177.75, 68.0], [177.97, 68.53], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.25, 68.65], [179.5, 68.75], [180.0, 68.54], [180.0, 65.96], [179.97, 65.97], [179.82, 66.32], [179.75, 66.35], [179.5, 66.25], [179.25, 66.35], [179.18, 66.32], [179.03, 65.97], [178.5, 65.75], [177.97, 65.97], [177.75, 66.5], [177.97, 67.03], [178.32, 67.18], [178.35, 67.25], [178.32, 67.32]]], [[[-179.97, 68.53], [-179.82, 68.18], [-179.75, 68.15], [-179.5, 68.25], [-178.97, 68.03], [-178.75, 67.5], [-178.85, 67.25], [-178.82, 67.18], [-178.75, 67.15], [-178.5, 67.25], [-178.25, 67.15], [-178.0, 67.25], [-177.47, 67.03], [-177.25, 66.5], [-177.35, 66.25], [-177.25, 66.0], [-177.47, 65.47], [-178.0, 65.25], [-178.53, 65.47], [-178.68, 65.82], [-178.75, 65.85], [-179.0, 65.75], [-179.25, 65.85], [-179.5, 65.75], [-180.0, 65.96], [-180.0, 68.54], [-179.97, 68.53]]]]}, "2013-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-174.25, 64.5], [-174.03, 65.03], [-173.5, 65.25], [-173.25, 65.15], [-173.18, 65.18], [-173.03, 65.53], [-172.5, 65.75], [-171.97, 65.53], [-171.75, 65.0], [-171.97, 64.47], [-172.32, 64.32], [-172.47, 63.97], [-173.0, 63.75], [-173.25, 63.85], [-173.5, 63.75], [-174.03, 63.97], [-174.25, 64.5]]], [[[177.47, 68.53], [178.0, 68.75], [178.25, 68.65], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.25, 68.65], [179.5, 68.75], [180.0, 68.54], [180.0, 65.75], [179.75, 65.85], [179.68, 65.82], [179.53, 65.47], [179.0, 65.25], [178.75, 65.35], [178.5, 65.25], [177.97, 65.47], [177.75, 66.0], [177.85, 66.25], [177.75, 66.5], [177.85, 66.75], [177.75, 67.0], [177.85, 67.25], [177.82, 67.32], [177.47, 67.47], [177.25, 68.0], [177.47, 68.53]]], [[[-179.97, 68.53], [-179.82, 68.18], [-179.75, 68.15], [-179.5, 68.25], [-178.97, 68.03], [-178.75, 67.5], [-178.85, 67.25], [-178.82, 67.18], [-178.75, 67.15], [-178.5, 67.25], [-178.25, 67.15], [-178.0, 67.25], [-177.47, 67.03], [-177.25, 66.5], [-177.35, 66.25], [-177.25, 66.0], [-177.47, 65.47], [-178.0, 65.25], [-178.53, 65.47], [-178.68, 65.82], [-178.75, 65.85], [-179.0, 65.75], [-179.25, 65.85], [-179.5, 65.75], [-179.75, 65.85], [-180.0, 65.75], [-180.0, 68.54], [-179.97, 68.53]]]]}, "2013-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[177.25, 68.0], [177.47, 68.53], [178.0, 68.75], [178.25, 68.65], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.25, 68.65], [179.5, 68.75], [180.0, 68.54], [180.0, 65.75], [179.75, 65.85], [179.68, 65.82], [179.53, 65.47], [179.0, 65.25], [178.75, 65.35], [178.5, 65.25], [177.97, 65.47], [177.75, 66.0], [177.85, 66.25], [177.75, 66.5], [177.85, 66.75], [177.75, 67.0], [177.85, 67.25], [177.82, 67.32], [177.47, 67.47], [177.25, 68.0]]], [[[-179.97, 68.53], [-179.82, 68.18], [-179.75, 68.15], [-179.5, 68.25], [-178.97, 68.03], [-178.75, 67.5], [-178.85, 67.25], [-178.82, 67.18], [-178.75, 67.15], [-178.5, 67.25], [-178.25, 67.15], [-178.18, 67.18], [-178.03, 67.53], [-177.5, 67.75], [-177.25, 67.65], [-177.0, 67.75], [-176.47, 67.53], [-176.32, 67.18], [-176.25, 67.15], [-176.0, 67.25], [-175.75, 67.15], [-175.5, 67.25], [-174.97, 67.03], [-174.82, 66.68], [-174.47, 66.53], [-174.32, 66.18], [-174.25, 66.15], [-174.0, 66.25], [-173.75, 66.15], [-173.5, 66.25], [-173.25, 66.15], [-173.0, 66.25], [-172.75, 66.15], [-172.5, 66.25], [-171.97, 66.03], [-171.75, 65.5], [-171.85, 65.25], [-171.75, 65.0], [-171.97, 64.47], [-172.32, 64.32], [-172.47, 63.97], [-173.0, 63.75], [-173.25, 63.85], [-173.5, 63.75], [-174.03, 63.97], [-174.18, 64.32], [-174.25, 64.35], [-174.5, 64.25], [-174.75, 64.35], [-175.0, 64.25], [-175.53, 64.47], [-175.68, 64.82], [-176.03, 64.97], [-176.18, 65.32], [-176.25, 65.35], [-176.5, 65.25], [-176.75, 65.35], [-177.0, 65.25], [-177.5, 65.46], [-178.0, 65.25], [-178.53, 65.47], [-178.68, 65.82], [-178.75, 65.85], [-179.0, 65.75], [-179.25, 65.85], [-179.5, 65.75], [-179.75, 65.85], [-180.0, 65.75], [-180.0, 68.54], [-179.97, 68.53]]]]}, "2013-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-177.25, 67.65], [-177.0, 67.75], [-176.47, 67.53], [-176.32, 67.18], [-176.25, 67.15], [-176.0, 67.25], [-175.75, 67.15], [-175.5, 67.25], [-174.97, 67.03], [-174.82, 66.68], [-174.47, 66.53], [-174.32, 66.18], [-174.25, 66.15], [-174.0, 66.25], [-173.75, 66.15], [-173.5, 66.25], [-173.25, 66.15], [-173.0, 66.25], [-172.75, 66.15], [-172.5, 66.25], [-171.97, 66.03], [-171.75, 65.5], [-171.85, 65.25], [-171.75, 65.0], [-171.97, 64.47], [-172.32, 64.32], [-172.47, 63.97], [-173.0, 63.75], [-173.25, 63.85], [-173.5, 63.75], [-174.03, 63.97], [-174.18, 64.32], [-174.25, 64.35], [-174.5, 64.25], [-174.75, 64.35], [-175.0, 64.25], [-175.53, 64.47], [-175.68, 64.82], [-176.03, 64.97], [-176.18, 65.32], [-176.25, 65.35], [-176.5, 65.25], [-176.75, 65.35], [-177.0, 65.25], [-177.53, 65.47], [-177.7, 65.88], [-178.0, 65.75], [-178.53, 65.97], [-178.75, 66.5], [-178.53, 67.03], [-178.18, 67.18], [-178.03, 67.53], [-177.5, 67.75], [-177.25, 67.65]]], [[[177.47, 68.53], [178.0, 68.75], [178.25, 68.65], [178.5, 68.75], [178.75, 68.65], [179.0, 68.75], [179.25, 68.65], [179.5, 68.75], [180.0, 68.54], [180.0, 65.75], [179.75, 65.85], [179.68, 65.82], [179.53, 65.47], [179.0, 65.25], [178.75, 65.35], [178.5, 65.25], [177.97, 65.47], [177.75, 66.0], [177.96, 66.5], [177.75, 67.0], [177.85, 67.25], [177.82, 67.32], [177.47, 67.47], [177.25, 68.0], [177.47, 68.53]]], [[[-179.97, 68.53], [-179.82, 68.18], [-179.75, 68.15], [-179.5, 68.25], [-178.97, 68.03], [-178.75, 67.5], [-178.85, 67.25], [-178.75, 67.0], [-178.97, 66.47], [-179.32, 66.32], [-179.47, 65.97], [-180.0, 65.75], [-180.0, 68.54], [-179.97, 68.53]]]]}, "2013-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-178.03, 67.53], [-177.5, 67.75], [-177.25, 67.65], [-177.0, 67.75], [-176.47, 67.53], [-176.32, 67.18], [-176.25, 67.15], [-176.0, 67.25], [-175.75, 67.15], [-175.5, 67.25], [-174.97, 67.03], [-174.82, 66.68], [-174.47, 66.53], [-174.32, 66.18], [-174.25, 66.15], [-174.0, 66.25], [-173.75, 66.15], [-173.5, 66.25], [-173.25, 66.15], [-173.0, 66.25], [-172.75, 66.15], [-172.5, 66.25], [-171.97, 66.03], [-171.75, 65.5], [-171.85, 65.25], [-171.75, 65.0], [-171.97, 64.47], [-172.32, 64.32], [-172.47, 63.97], [-173.0, 63.75], [-173.25, 63.85], [-173.5, 63.75], [-174.03, 63.97], [-174.18, 64.32], [-174.25, 64.35], [-174.5, 64.25], [-174.75, 64.35], [-175.0, 64.25], [-175.53, 64.47], [-175.68, 64.82], [-176.03, 64.97], [-176.18, 65.32], [-176.25, 65.35], [-176.5, 65.25], [-176.75, 65.35], [-177.0, 65.25], [-177.53, 65.47], [-177.75, 66.0], [-177.62, 66.3], [-178.03, 66.47], [-178.25, 67.0], [-178.03, 67.53]]], [[[178.25, 67.5], [178.47, 68.03], [179.0, 68.25], [179.25, 68.15], [179.5, 68.25], [180.0, 68.04], [180.0, 66.96], [179.5, 66.75], [179.25, 66.85], [179.0, 66.75], [178.47, 66.97], [178.25, 67.5]]], [[[-179.97, 68.03], [-179.75, 67.5], [-179.97, 66.97], [-180.0, 66.96], [-180.0, 68.04], [-179.97, 68.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.59789615216448}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.904203042727004}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.73911864945984, 6.489040677968092, 7.34117711932106, 7.150069325358913, 8.78918233544664, 8.934539044349776, 9.038160837370071]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.3731066966864205, 8.156387597666537, 9.475209652491401, 10.608654157567457, 11.707910029099196, 11.823947482792903, 12.224998955784429]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8672850711020033, 4.954578198255177, 5.636020313504315, 5.123804710013118, 6.412865952168752, 6.239423808591554, 5.954629481752717]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.1187315244065985, 6.014364896670656, 6.864224786024863, 6.059014390414745, 8.384449519426198, 8.589850290087554, 8.59789615216448]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2821260862984825, 1.615916641131536, 1.797110069396719, 1.6058419858416075, 2.026739128782168, 1.9171360816232608, 1.9457398293641692]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3311607381393025, 1.929846128938143, 2.248022311766945, 1.9035604478728987, 2.627654487378606, 2.62188536327476, 2.8316917171630687]}}