{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:39.782542", "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-Aug-01_to_2015-Aug-08_180.0_64.5"}, "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": 2015080001382}, "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": "August 01 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 08 2015"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 58013.86232718698}, "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", "Russian-Far-East"]}, "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": ["Bering Sea"]}, "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": 64.5}, "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": 176.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 184.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 66.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.25, 65.0], [176.47, 65.53], [177.0, 65.75], [177.53, 65.53], [177.68, 65.18], [177.75, 65.15], [178.0, 65.25], [178.25, 65.15], [178.5, 65.25], [178.75, 65.15], [179.0, 65.25], [179.25, 65.15], [179.32, 65.18], [179.47, 65.53], [180.0, 65.75], [180.0, 63.46], [179.5, 63.25], [179.25, 63.35], [179.0, 63.25], [178.47, 63.47], [178.32, 63.82], [178.25, 63.85], [178.0, 63.75], [177.75, 63.85], [177.5, 63.75], [176.97, 63.97], [176.82, 64.32], [176.47, 64.47], [176.25, 65.0]]], [[[-179.75, 65.65], [-179.68, 65.68], [-179.53, 66.03], [-179.0, 66.25], [-178.47, 66.03], [-178.32, 65.68], [-178.25, 65.65], [-178.0, 65.75], [-177.75, 65.65], [-177.5, 65.75], [-177.25, 65.65], [-177.0, 65.75], [-176.75, 65.65], [-176.5, 65.75], [-175.97, 65.53], [-175.75, 65.0], [-175.97, 64.47], [-176.5, 64.25], [-176.75, 64.35], [-177.0, 64.25], [-177.25, 64.35], [-177.5, 64.25], [-177.75, 64.35], [-177.82, 64.32], [-177.97, 63.97], [-178.5, 63.75], [-178.75, 63.85], [-179.0, 63.75], [-179.25, 63.85], [-179.5, 63.75], [-179.75, 63.85], [-179.82, 63.82], [-179.97, 63.47], [-180.0, 63.46], [-180.0, 65.75], [-179.75, 65.65]]]]}, "2015-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.25, 65.0], [176.47, 65.53], [177.0, 65.75], [177.53, 65.53], [177.68, 65.18], [177.75, 65.15], [178.0, 65.25], [178.25, 65.15], [178.5, 65.25], [178.75, 65.15], [178.82, 65.18], [178.97, 65.53], [179.5, 65.75], [179.75, 65.65], [179.82, 65.68], [179.97, 66.03], [180.0, 66.04], [180.0, 63.46], [179.5, 63.25], [179.25, 63.35], [179.0, 63.25], [178.47, 63.47], [178.32, 63.82], [178.25, 63.85], [178.0, 63.75], [177.75, 63.85], [177.5, 63.75], [176.97, 63.97], [176.82, 64.32], [176.47, 64.47], [176.25, 65.0]]], [[[-179.68, 66.18], [-179.53, 66.53], [-179.0, 66.75], [-178.75, 66.65], [-178.5, 66.75], [-177.97, 66.53], [-177.82, 66.18], [-177.75, 66.15], [-177.5, 66.25], [-176.97, 66.03], [-176.82, 65.68], [-176.75, 65.65], [-176.5, 65.75], [-175.97, 65.53], [-175.75, 65.0], [-175.97, 64.47], [-176.5, 64.25], [-176.75, 64.35], [-177.0, 64.25], [-177.25, 64.35], [-177.5, 64.25], [-177.75, 64.35], [-177.82, 64.32], [-177.97, 63.97], [-178.5, 63.75], [-178.75, 63.85], [-179.0, 63.75], [-179.25, 63.85], [-179.5, 63.75], [-179.75, 63.85], [-179.82, 63.82], [-179.97, 63.47], [-180.0, 63.46], [-180.0, 66.04], [-179.68, 66.18]]]]}, "2015-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.25, 65.0], [176.47, 65.53], [177.0, 65.75], [177.53, 65.53], [177.68, 65.18], [177.75, 65.15], [178.0, 65.25], [178.25, 65.15], [178.5, 65.25], [178.75, 65.15], [178.82, 65.18], [178.97, 65.53], [179.5, 65.75], [179.75, 65.65], [179.82, 65.68], [179.97, 66.03], [180.0, 66.04], [180.0, 63.46], [179.5, 63.25], [179.25, 63.35], [179.0, 63.25], [178.47, 63.47], [178.32, 63.82], [178.25, 63.85], [178.0, 63.75], [177.75, 63.85], [177.5, 63.75], [176.97, 63.97], [176.82, 64.32], [176.47, 64.47], [176.25, 65.0]]], [[[-179.68, 66.18], [-179.53, 66.53], [-179.0, 66.75], [-178.75, 66.65], [-178.5, 66.75], [-177.97, 66.53], [-177.82, 66.18], [-177.75, 66.15], [-177.5, 66.25], [-176.97, 66.03], [-176.82, 65.68], [-176.75, 65.65], [-176.5, 65.75], [-176.25, 65.65], [-176.0, 65.75], [-175.47, 65.53], [-175.25, 65.0], [-175.47, 64.47], [-176.0, 64.25], [-176.25, 64.35], [-176.5, 64.25], [-176.75, 64.35], [-177.0, 64.25], [-177.25, 64.35], [-177.5, 64.25], [-177.75, 64.35], [-177.82, 64.32], [-177.97, 63.97], [-178.5, 63.75], [-178.75, 63.85], [-179.0, 63.75], [-179.25, 63.85], [-179.5, 63.75], [-179.75, 63.85], [-179.82, 63.82], [-179.97, 63.47], [-180.0, 63.46], [-180.0, 66.04], [-179.68, 66.18]]]]}, "2015-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.47, 65.53], [177.0, 65.75], [177.25, 65.65], [177.5, 65.75], [177.75, 65.65], [178.0, 65.75], [178.25, 65.65], [178.5, 65.75], [178.75, 65.65], [179.0, 65.75], [179.25, 65.65], [179.5, 65.75], [179.75, 65.65], [179.82, 65.68], [179.97, 66.03], [180.0, 66.04], [180.0, 63.25], [179.75, 63.35], [179.5, 63.25], [179.25, 63.35], [179.0, 63.25], [178.75, 63.35], [178.5, 63.25], [178.25, 63.35], [178.0, 63.25], [177.75, 63.35], [177.5, 63.25], [176.97, 63.47], [176.82, 63.82], [176.47, 63.97], [176.25, 64.5], [176.35, 64.75], [176.25, 65.0], [176.47, 65.53]]], [[[-179.68, 66.18], [-179.53, 66.53], [-179.0, 66.75], [-178.75, 66.65], [-178.5, 66.75], [-177.97, 66.53], [-177.82, 66.18], [-177.75, 66.15], [-177.5, 66.25], [-176.97, 66.03], [-176.82, 65.68], [-176.75, 65.65], [-176.5, 65.75], [-176.25, 65.65], [-176.0, 65.75], [-175.47, 65.53], [-175.25, 65.0], [-175.47, 64.47], [-175.82, 64.32], [-175.97, 63.97], [-176.5, 63.75], [-176.75, 63.85], [-177.0, 63.75], [-177.25, 63.85], [-177.5, 63.75], [-177.75, 63.85], [-178.0, 63.75], [-178.25, 63.85], [-178.5, 63.75], [-178.75, 63.85], [-178.82, 63.82], [-178.97, 63.47], [-179.5, 63.25], [-179.75, 63.35], [-180.0, 63.25], [-180.0, 66.04], [-179.68, 66.18]]]]}, "2015-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.47, 65.53], [177.0, 65.75], [177.25, 65.65], [177.5, 65.75], [177.75, 65.65], [178.0, 65.75], [178.25, 65.65], [178.5, 65.75], [178.75, 65.65], [179.0, 65.75], [179.25, 65.65], [179.5, 65.75], [179.75, 65.65], [180.0, 65.75], [180.0, 63.25], [179.75, 63.35], [179.5, 63.25], [179.25, 63.35], [179.18, 63.32], [179.03, 62.97], [178.5, 62.75], [177.97, 62.97], [177.82, 63.32], [177.75, 63.35], [177.5, 63.25], [176.97, 63.47], [176.82, 63.82], [176.47, 63.97], [176.25, 64.5], [176.35, 64.75], [176.25, 65.0], [176.47, 65.53]]], [[[-179.75, 65.65], [-179.5, 65.75], [-179.25, 65.65], [-179.0, 65.75], [-178.75, 65.65], [-178.5, 65.75], [-178.25, 65.65], [-178.0, 65.75], [-177.75, 65.65], [-177.5, 65.75], [-177.25, 65.65], [-177.0, 65.75], [-176.75, 65.65], [-176.5, 65.75], [-176.25, 65.65], [-176.0, 65.75], [-175.47, 65.53], [-175.25, 65.0], [-175.47, 64.47], [-175.82, 64.32], [-175.97, 63.97], [-176.5, 63.75], [-176.75, 63.85], [-177.0, 63.75], [-177.25, 63.85], [-177.5, 63.75], [-177.75, 63.85], [-178.0, 63.75], [-178.25, 63.85], [-178.5, 63.75], [-178.75, 63.85], [-178.82, 63.82], [-178.97, 63.47], [-179.5, 63.25], [-179.75, 63.35], [-180.0, 63.25], [-180.0, 65.75], [-179.75, 65.65]]]]}, "2015-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.47, 65.53], [177.0, 65.75], [177.25, 65.65], [177.5, 65.75], [177.75, 65.65], [178.0, 65.75], [178.25, 65.65], [178.5, 65.75], [178.75, 65.65], [179.0, 65.75], [179.25, 65.65], [179.5, 65.75], [179.75, 65.65], [180.0, 65.75], [180.0, 63.25], [179.75, 63.35], [179.5, 63.25], [179.25, 63.35], [179.18, 63.32], [179.03, 62.97], [178.5, 62.75], [177.97, 62.97], [177.82, 63.32], [177.75, 63.35], [177.5, 63.25], [176.97, 63.47], [176.82, 63.82], [176.47, 63.97], [176.25, 64.5], [176.35, 64.75], [176.25, 65.0], [176.47, 65.53]]], [[[-179.75, 65.65], [-179.5, 65.75], [-179.25, 65.65], [-179.0, 65.75], [-178.75, 65.65], [-178.5, 65.75], [-178.25, 65.65], [-178.0, 65.75], [-177.75, 65.65], [-177.5, 65.75], [-177.25, 65.65], [-177.0, 65.75], [-176.75, 65.65], [-176.5, 65.75], [-175.97, 65.53], [-175.75, 65.0], [-175.85, 64.75], [-175.75, 64.5], [-175.97, 63.97], [-176.5, 63.75], [-176.75, 63.85], [-177.0, 63.75], [-177.25, 63.85], [-177.5, 63.75], [-177.75, 63.85], [-178.0, 63.75], [-178.25, 63.85], [-178.5, 63.75], [-178.75, 63.85], [-178.82, 63.82], [-178.97, 63.47], [-179.5, 63.25], [-179.75, 63.35], [-180.0, 63.25], [-180.0, 65.75], [-179.75, 65.65]]]]}, "2015-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[176.97, 63.97], [176.75, 64.5], [176.97, 65.03], [177.5, 65.25], [177.75, 65.15], [178.0, 65.25], [178.25, 65.15], [178.5, 65.25], [178.75, 65.15], [179.0, 65.25], [179.25, 65.15], [179.32, 65.18], [179.47, 65.53], [180.0, 65.75], [180.0, 63.25], [179.75, 63.35], [179.5, 63.25], [179.25, 63.35], [179.18, 63.32], [179.03, 62.97], [178.5, 62.75], [177.97, 62.97], [177.75, 63.5], [177.85, 63.75], [177.82, 63.82], [177.75, 63.85], [177.5, 63.75], [176.97, 63.97]]], [[[-179.47, 65.53], [-179.32, 65.18], [-179.25, 65.15], [-179.18, 65.18], [-179.03, 65.53], [-178.5, 65.75], [-178.25, 65.65], [-178.0, 65.75], [-177.75, 65.65], [-177.5, 65.75], [-177.25, 65.65], [-177.0, 65.75], [-176.75, 65.65], [-176.5, 65.75], [-175.97, 65.53], [-175.75, 65.0], [-175.85, 64.75], [-175.75, 64.5], [-175.97, 63.97], [-176.5, 63.75], [-176.75, 63.85], [-177.0, 63.75], [-177.25, 63.85], [-177.5, 63.75], [-177.75, 63.85], [-178.0, 63.75], [-178.25, 63.85], [-178.5, 63.75], [-178.75, 63.85], [-178.82, 63.82], [-178.97, 63.47], [-179.5, 63.25], [-179.75, 63.35], [-180.0, 63.25], [-180.0, 65.75], [-179.47, 65.53]]]]}, "2015-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-178.0, 65.25], [-177.47, 65.03], [-177.25, 64.5], [-177.47, 63.97], [-178.0, 63.75], [-178.53, 63.97], [-178.75, 64.5], [-178.53, 65.03], [-178.0, 65.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.1322440771623405}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.208236649167011}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.507620897628726, 13.790894337016823, 13.533146386068495, 14.284110838523418, 13.8161227376782, 14.54624659495812, 12.444775168534022, 11.017620279008497]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.274803275201123, 17.57034530420782, 16.189932957382155, 17.909789588933677, 17.8583154494371, 18.92049353970083, 13.642549891024657, 11.017620279008497]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.21693601722463, 4.3238061345363406, 4.105135682788275, 4.393130610821982, 3.986956224000981, 4.798707005242873, 3.4463378269646547, 1.8070054709068586]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.698925707479987, 6.610985546131758, 6.253310825569258, 6.752858435669054, 6.007104223589636, 7.1322440771623405, 4.855924343487629, 1.8070054709068586]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8621318462391638, 1.9153898975312909, 1.8222744006397136, 1.9284095930220937, 1.7844943499890025, 2.1825115474948444, 1.7384256101201916, 1.1917043535778284]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9960061257864745, 2.314758293473442, 2.200676081904683, 2.450325421968904, 2.151426715654908, 2.6609856101449054, 2.1197671657543213, 1.1917043535778284]}}