{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:56.817003", "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": "2025-Jun-03_to_2025-Jun-07_166.0_55.0"}, "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": 2025060001488}, "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": "June 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 07 2025"}, "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": "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": 72941.67405817247}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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", "Pacific Ocean"]}, "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": 55.0}, "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": 166.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "166.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 164.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 167.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[163.85, 56.25], [163.82, 56.32], [163.47, 56.47], [163.25, 57.0], [163.35, 57.25], [163.25, 57.5], [163.47, 58.03], [164.0, 58.25], [164.25, 58.15], [164.5, 58.25], [164.75, 58.15], [165.0, 58.25], [165.53, 58.03], [165.68, 57.68], [166.0, 57.54], [166.32, 57.68], [166.47, 58.03], [167.0, 58.25], [167.25, 58.15], [167.5, 58.25], [168.03, 58.03], [168.25, 57.5], [168.04, 57.0], [168.25, 56.5], [168.15, 56.25], [168.25, 56.0], [168.03, 55.47], [167.5, 55.25], [167.25, 55.35], [167.13, 55.3], [167.25, 55.0], [167.04, 54.5], [167.25, 54.0], [167.03, 53.47], [166.5, 53.25], [166.25, 53.35], [166.0, 53.25], [165.75, 53.35], [165.5, 53.25], [165.25, 53.35], [165.0, 53.25], [164.75, 53.35], [164.5, 53.25], [163.97, 53.47], [163.75, 54.0], [163.88, 54.3], [163.47, 54.47], [163.25, 55.0], [163.35, 55.25], [163.25, 55.5], [163.47, 56.03], [163.82, 56.18], [163.85, 56.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Far-East", "N.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[163.25, 57.5], [163.47, 58.03], [164.0, 58.25], [164.25, 58.15], [164.5, 58.25], [164.75, 58.15], [165.0, 58.25], [165.53, 58.03], [165.68, 57.68], [166.0, 57.54], [166.32, 57.68], [166.47, 58.03], [167.0, 58.25], [167.25, 58.15], [167.5, 58.25], [168.03, 58.03], [168.25, 57.5], [168.04, 57.0], [168.25, 56.5], [168.15, 56.25], [168.25, 56.0], [168.03, 55.47], [167.5, 55.25], [167.25, 55.35], [167.13, 55.3], [167.25, 55.0], [167.03, 54.47], [166.68, 54.32], [166.53, 53.97], [166.0, 53.75], [165.75, 53.85], [165.5, 53.75], [165.25, 53.85], [165.0, 53.75], [164.47, 53.97], [164.32, 54.32], [163.97, 54.47], [163.75, 55.0], [163.85, 55.25], [163.75, 55.5], [163.85, 55.75], [163.75, 56.0], [163.85, 56.25], [163.82, 56.32], [163.47, 56.47], [163.25, 57.0], [163.35, 57.25], [163.25, 57.5]]]]}, "2025-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[163.25, 55.5], [163.47, 56.03], [163.82, 56.18], [163.85, 56.25], [163.82, 56.32], [163.47, 56.47], [163.25, 57.0], [163.35, 57.25], [163.25, 57.5], [163.47, 58.03], [164.0, 58.25], [164.25, 58.15], [164.5, 58.25], [164.75, 58.15], [165.0, 58.25], [165.53, 58.03], [165.68, 57.68], [166.0, 57.54], [166.32, 57.68], [166.47, 58.03], [167.0, 58.25], [167.25, 58.15], [167.5, 58.25], [168.03, 58.03], [168.25, 57.5], [168.04, 57.0], [168.25, 56.5], [168.15, 56.25], [168.25, 56.0], [168.03, 55.47], [167.5, 55.25], [167.25, 55.35], [167.13, 55.3], [167.25, 55.0], [167.04, 54.5], [167.25, 54.0], [167.03, 53.47], [166.5, 53.25], [166.25, 53.35], [166.0, 53.25], [165.75, 53.35], [165.5, 53.25], [165.25, 53.35], [165.0, 53.25], [164.75, 53.35], [164.5, 53.25], [163.97, 53.47], [163.75, 54.0], [163.88, 54.3], [163.47, 54.47], [163.25, 55.0], [163.35, 55.25], [163.25, 55.5]]]]}, "2025-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[163.25, 55.5], [163.47, 56.03], [163.82, 56.18], [163.85, 56.25], [163.82, 56.32], [163.47, 56.47], [163.25, 57.0], [163.35, 57.25], [163.25, 57.5], [163.47, 58.03], [164.0, 58.25], [164.25, 58.15], [164.5, 58.25], [164.75, 58.15], [165.0, 58.25], [165.53, 58.03], [165.68, 57.68], [166.0, 57.54], [166.32, 57.68], [166.47, 58.03], [167.0, 58.25], [167.25, 58.15], [167.5, 58.25], [168.03, 58.03], [168.25, 57.5], [168.04, 57.0], [168.25, 56.5], [168.15, 56.25], [168.25, 56.0], [168.03, 55.47], [167.5, 55.25], [167.25, 55.35], [167.13, 55.3], [167.25, 55.0], [167.04, 54.5], [167.25, 54.0], [167.03, 53.47], [166.5, 53.25], [166.25, 53.35], [166.0, 53.25], [165.75, 53.35], [165.5, 53.25], [165.25, 53.35], [165.0, 53.25], [164.75, 53.35], [164.5, 53.25], [163.97, 53.47], [163.75, 54.0], [163.88, 54.3], [163.47, 54.47], [163.25, 55.0], [163.35, 55.25], [163.25, 55.5]]]]}, "2025-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[163.25, 55.5], [163.47, 56.03], [163.82, 56.18], [163.85, 56.25], [163.75, 56.5], [163.97, 57.03], [164.5, 57.25], [164.75, 57.15], [165.0, 57.25], [165.25, 57.15], [165.5, 57.25], [165.75, 57.15], [166.0, 57.25], [166.53, 57.03], [166.68, 56.68], [167.03, 56.53], [167.25, 56.0], [167.03, 55.47], [166.68, 55.32], [166.65, 55.25], [166.75, 55.0], [166.65, 54.75], [166.68, 54.68], [167.03, 54.53], [167.25, 54.0], [167.03, 53.47], [166.5, 53.25], [166.25, 53.35], [166.0, 53.25], [165.75, 53.35], [165.5, 53.25], [165.25, 53.35], [165.0, 53.25], [164.75, 53.35], [164.5, 53.25], [163.97, 53.47], [163.75, 54.0], [163.88, 54.3], [163.47, 54.47], [163.25, 55.0], [163.35, 55.25], [163.25, 55.5]]]]}, "2025-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[164.75, 55.5], [164.97, 56.03], [165.5, 56.25], [166.03, 56.03], [166.18, 55.68], [166.53, 55.53], [166.75, 55.0], [166.53, 54.47], [166.0, 54.25], [165.75, 54.35], [165.5, 54.25], [164.97, 54.47], [164.75, 55.0], [164.85, 55.25], [164.75, 55.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4159765208148087}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9223047293056372}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.799763054941252, 6.710848199753627, 6.505870770651256, 6.057595212959939, 6.053577677408896]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.808126068115257, 8.367295837402366, 8.396677907307946, 6.340240732828818, 6.31855163574221]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6510690157989547, 2.375991533456326, 2.0321140845391095, 1.4519985327574831, 1.3401190199364994]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.219276986423324, 3.4159765208148087, 2.979706176467232, 1.8042200592245194, 1.424477889011314]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3213243604630398, 1.9263811161715434, 1.6892297573364519, 1.326254033873715, 1.2935336553727188]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.004772546308613, 2.4684684200921154, 2.2976645196560663, 1.6319037455450907, 1.3922860258280751]}}