{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:23:15.204705", "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": "2021-Mar-27_to_2021-Apr-01_130.5_55.5"}, "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": 2021030002721}, "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": "March 27 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 01 2021"}, "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": 154398.64805309812}, "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": []}, "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": 55.5}, "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": 130.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "130.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 58.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[131.177, 53.677], [131.53, 53.53], [131.75, 53.0], [131.53, 52.47], [131.0, 52.25], [130.75, 52.354], [130.5, 52.25], [130.25, 52.354], [130.0, 52.25], [129.47, 52.47], [129.323, 52.823], [129.25, 52.854], [129.0, 52.75], [128.47, 52.97], [128.323, 53.323], [127.97, 53.47], [127.823, 53.823], [127.47, 53.97], [127.323, 54.323], [126.97, 54.47], [126.75, 55.0], [126.97, 55.53], [127.5, 55.75], [127.75, 55.646], [127.774, 55.656], [127.823, 55.677], [127.97, 56.03], [128.5, 56.25], [128.75, 56.146], [129.0, 56.25], [128.47, 56.47], [128.323, 56.823], [128.25, 56.854], [128.0, 56.75], [127.75, 56.854], [127.5, 56.75], [126.97, 56.97], [126.75, 57.5], [126.97, 58.03], [127.5, 58.25], [127.75, 58.146], [128.0, 58.25], [128.25, 58.146], [128.5, 58.25], [128.75, 58.146], [128.823, 58.177], [128.97, 58.53], [129.5, 58.75], [129.75, 58.646], [130.0, 58.75], [130.25, 58.646], [130.5, 58.75], [130.75, 58.646], [131.0, 58.75], [131.53, 58.53], [131.677, 58.177], [131.75, 58.146], [132.0, 58.25], [132.25, 58.146], [132.323, 58.177], [132.47, 58.53], [133.0, 58.75], [133.53, 58.53], [133.677, 58.177], [133.75, 58.146], [134.0, 58.25], [134.53, 58.03], [134.75, 57.5], [134.543, 57.0], [134.677, 56.677], [134.75, 56.646], [135.0, 56.75], [135.25, 56.646], [135.5, 56.75], [135.75, 56.646], [136.0, 56.75], [136.53, 56.53], [136.75, 56.0], [136.53, 55.47], [136.0, 55.25], [135.75, 55.354], [135.5, 55.25], [135.25, 55.354], [135.177, 55.323], [135.03, 54.97], [134.5, 54.75], [134.25, 54.854], [134.177, 54.823], [134.03, 54.47], [133.5, 54.25], [133.25, 54.354], [133.0, 54.25], [132.75, 54.354], [132.677, 54.323], [132.53, 53.97], [132.0, 53.75], [131.75, 53.854], [131.5, 53.75], [131.25, 53.854], [131.125, 53.802], [131.177, 53.677]], [[129.25, 56.146], [129.251, 56.146], [129.323, 56.177], [129.375, 56.302], [129.25, 56.354], [129.0, 56.25], [129.25, 56.146]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia", "Russian-Far-East"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-03-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[127.75, 54.35355339059328], [127.5, 54.25], [126.96966991411009, 54.46966991411009], [126.75, 55.0], [126.96966991411009, 55.53033008588991], [127.5, 55.75], [127.75, 55.64644660940672], [127.82322330470336, 55.67677669529664], [127.96966991411009, 56.03033008588991], [128.5, 56.25], [128.75, 56.14644660940672], [129.0, 56.25], [128.46966991411009, 56.46966991411009], [128.32322330470336, 56.82322330470336], [128.25, 56.85355339059328], [128.0, 56.75], [127.75, 56.85355339059328], [127.5, 56.75], [126.96966991411009, 56.96966991411009], [126.75, 57.5], [126.96966991411009, 58.03033008588991], [127.5, 58.25], [127.75, 58.14644660940672], [128.0, 58.25], [128.25, 58.14644660940672], [128.5, 58.25], [128.75, 58.14644660940672], [128.82322330470336, 58.17677669529664], [128.96966991411009, 58.53033008588991], [129.5, 58.75], [129.75, 58.64644660940672], [130.0, 58.75], [130.25, 58.64644660940672], [130.5, 58.75], [130.75, 58.64644660940672], [131.0, 58.75], [131.53033008588991, 58.53033008588991], [131.67677669529664, 58.17677669529664], [131.75, 58.14644660940672], [132.0, 58.25], [132.25, 58.14644660940672], [132.32322330470336, 58.17677669529664], [132.46966991411009, 58.53033008588991], [133.0, 58.75], [133.53033008588991, 58.53033008588991], [133.67677669529664, 58.17677669529664], [133.75, 58.14644660940672], [134.0, 58.25], [134.53033008588991, 58.03033008588991], [134.75, 57.5], [134.53033008588991, 56.96966991411009], [134.0, 56.75], [133.75, 56.85355339059328], [133.67677669529664, 56.82322330470336], [133.64644660940672, 56.75], [133.75, 56.5], [133.53033008588991, 55.96966991411009], [133.0, 55.75], [132.5, 55.957106781186546], [132.0, 55.75], [131.75, 55.85355339059328], [131.5, 55.75], [131.19822330470336, 55.875], [131.03033008588991, 55.46966991411009], [130.5, 55.25], [130.25, 55.35355339059328], [130.125, 55.30177669529664], [130.25, 55.0], [130.14644660940672, 54.75], [130.17677669529664, 54.67677669529664], [130.53033008588991, 54.53033008588991], [130.67677669529664, 54.17677669529664], [131.03033008588991, 54.03033008588991], [131.17677669529664, 53.67677669529664], [131.53033008588991, 53.53033008588991], [131.75, 53.0], [131.53033008588991, 52.46966991411009], [131.0, 52.25], [130.75, 52.35355339059328], [130.5, 52.25], [130.25, 52.35355339059328], [130.0, 52.25], [129.46966991411009, 52.46966991411009], [129.32322330470336, 52.82322330470336], [129.25, 52.85355339059328], [129.0, 52.75], [128.46966991411009, 52.96966991411009], [128.32322330470336, 53.32322330470336], [127.96966991411009, 53.46966991411009], [127.75, 54.0], [127.875, 54.30177669529664], [127.75, 54.35355339059328]], [[129.0, 56.25], [129.30177669529664, 56.125], [129.375, 56.30177669529664], [129.25, 56.35355339059328], [129.0, 56.25]]]}, "2021-03-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[127.32322330470336, 54.32322330470336], [126.96966991411009, 54.46966991411009], [126.75, 55.0], [126.96966991411009, 55.53033008588991], [127.5, 55.75], [127.75, 55.64644660940672], [127.82322330470336, 55.67677669529664], [127.96966991411009, 56.03033008588991], [128.5, 56.25], [128.75, 56.14644660940672], [129.0, 56.25], [128.46966991411009, 56.46966991411009], [128.32322330470336, 56.82322330470336], [128.25, 56.85355339059328], [128.0, 56.75], [127.75, 56.85355339059328], [127.5, 56.75], [126.96966991411009, 56.96966991411009], [126.75, 57.5], [126.96966991411009, 58.03033008588991], [127.5, 58.25], [127.75, 58.14644660940672], [128.0, 58.25], [128.25, 58.14644660940672], [128.5, 58.25], [128.75, 58.14644660940672], [128.82322330470336, 58.17677669529664], [128.96966991411009, 58.53033008588991], [129.5, 58.75], [129.75, 58.64644660940672], [130.0, 58.75], [130.25, 58.64644660940672], [130.5, 58.75], [130.75, 58.64644660940672], [131.0, 58.75], [131.53033008588991, 58.53033008588991], [131.67677669529664, 58.17677669529664], [131.75, 58.14644660940672], [132.0, 58.25], [132.25, 58.14644660940672], [132.32322330470336, 58.17677669529664], [132.46966991411009, 58.53033008588991], [133.0, 58.75], [133.53033008588991, 58.53033008588991], [133.67677669529664, 58.17677669529664], [133.75, 58.14644660940672], [134.0, 58.25], [134.53033008588991, 58.03033008588991], [134.75, 57.5], [134.54289321881345, 57.0], [134.67677669529664, 56.67677669529664], [134.75, 56.64644660940672], [135.0, 56.75], [135.25, 56.64644660940672], [135.5, 56.75], [135.75, 56.64644660940672], [136.0, 56.75], [136.53033008588991, 56.53033008588991], [136.75, 56.0], [136.53033008588991, 55.46966991411009], [136.0, 55.25], [135.75, 55.35355339059328], [135.5, 55.25], [135.25, 55.35355339059328], [135.17677669529664, 55.32322330470336], [135.03033008588991, 54.96966991411009], [134.5, 54.75], [134.25, 54.85355339059328], [134.17677669529664, 54.82322330470336], [134.03033008588991, 54.46966991411009], [133.5, 54.25], [133.25, 54.35355339059328], [133.0, 54.25], [132.75, 54.35355339059328], [132.67677669529664, 54.32322330470336], [132.53033008588991, 53.96966991411009], [132.0, 53.75], [131.75, 53.85355339059328], [131.5, 53.75], [131.25, 53.85355339059328], [131.125, 53.80177669529664], [131.17677669529664, 53.67677669529664], [131.53033008588991, 53.53033008588991], [131.75, 53.0], [131.53033008588991, 52.46966991411009], [131.0, 52.25], [130.75, 52.35355339059328], [130.5, 52.25], [130.25, 52.35355339059328], [130.0, 52.25], [129.46966991411009, 52.46966991411009], [129.32322330470336, 52.82322330470336], [129.25, 52.85355339059328], [129.0, 52.75], [128.46966991411009, 52.96966991411009], [128.32322330470336, 53.32322330470336], [127.96966991411009, 53.46966991411009], [127.82322330470336, 53.82322330470336], [127.46966991411009, 53.96966991411009], [127.32322330470336, 54.32322330470336]], [[129.0, 56.25], [129.25, 56.14644660940672], [129.32322330470336, 56.17677669529664], [129.375, 56.30177669529664], [129.25, 56.35355339059328], [129.0, 56.25]]]}, "2021-03-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[127.32322330470336, 54.32322330470336], [126.96966991411009, 54.46966991411009], [126.75, 55.0], [126.96966991411009, 55.53033008588991], [127.5, 55.75], [127.75, 55.64644660940672], [127.82322330470336, 55.67677669529664], [127.96966991411009, 56.03033008588991], [128.5, 56.25], [128.75, 56.14644660940672], [129.0, 56.25], [128.46966991411009, 56.46966991411009], [128.32322330470336, 56.82322330470336], [128.25, 56.85355339059328], [128.0, 56.75], [127.75, 56.85355339059328], [127.5, 56.75], [126.96966991411009, 56.96966991411009], [126.75, 57.5], [126.96966991411009, 58.03033008588991], [127.5, 58.25], [127.75, 58.14644660940672], [128.0, 58.25], [128.25, 58.14644660940672], [128.5, 58.25], [128.75, 58.14644660940672], [128.82322330470336, 58.17677669529664], [128.96966991411009, 58.53033008588991], [129.5, 58.75], [129.75, 58.64644660940672], [130.0, 58.75], [130.25, 58.64644660940672], [130.5, 58.75], [130.75, 58.64644660940672], [131.0, 58.75], [131.53033008588991, 58.53033008588991], [131.67677669529664, 58.17677669529664], [131.75, 58.14644660940672], [132.0, 58.25], [132.25, 58.14644660940672], [132.32322330470336, 58.17677669529664], [132.46966991411009, 58.53033008588991], [133.0, 58.75], [133.53033008588991, 58.53033008588991], [133.67677669529664, 58.17677669529664], [133.75, 58.14644660940672], [134.0, 58.25], [134.53033008588991, 58.03033008588991], [134.75, 57.5], [134.54289321881345, 57.0], [134.67677669529664, 56.67677669529664], [134.75, 56.64644660940672], [135.0, 56.75], [135.25, 56.64644660940672], [135.5, 56.75], [135.75, 56.64644660940672], [136.0, 56.75], [136.53033008588991, 56.53033008588991], [136.75, 56.0], [136.53033008588991, 55.46966991411009], [136.0, 55.25], [135.75, 55.35355339059328], [135.5, 55.25], [135.25, 55.35355339059328], [135.17677669529664, 55.32322330470336], [135.03033008588991, 54.96966991411009], [134.5, 54.75], [134.25, 54.85355339059328], [134.17677669529664, 54.82322330470336], [134.03033008588991, 54.46966991411009], [133.5, 54.25], [133.25, 54.35355339059328], [133.0, 54.25], [132.75, 54.35355339059328], [132.67677669529664, 54.32322330470336], [132.53033008588991, 53.96966991411009], [132.0, 53.75], [131.75, 53.85355339059328], [131.5, 53.75], [131.25, 53.85355339059328], [131.125, 53.80177669529664], [131.17677669529664, 53.67677669529664], [131.53033008588991, 53.53033008588991], [131.75, 53.0], [131.53033008588991, 52.46966991411009], [131.0, 52.25], [130.75, 52.35355339059328], [130.5, 52.25], [130.25, 52.35355339059328], [130.0, 52.25], [129.46966991411009, 52.46966991411009], [129.32322330470336, 52.82322330470336], [129.25, 52.85355339059328], [129.0, 52.75], [128.46966991411009, 52.96966991411009], [128.32322330470336, 53.32322330470336], [127.96966991411009, 53.46966991411009], [127.82322330470336, 53.82322330470336], [127.46966991411009, 53.96966991411009], [127.32322330470336, 54.32322330470336]], [[129.0, 56.25], [129.25, 56.14644660940672], [129.32322330470336, 56.17677669529664], [129.375, 56.30177669529664], [129.25, 56.35355339059328], [129.0, 56.25]]]}, "2021-03-30T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[127.35355339059328, 54.75], [127.25, 55.0], [127.46966991411009, 55.53033008588991], [128.0, 55.75], [128.25, 55.64644660940672], [128.32322330470336, 55.67677669529664], [128.46966991411009, 56.03033008588991], [129.0, 56.25], [129.25, 56.14644660940672], [129.5, 56.25], [129.75, 56.14644660940672], [130.0, 56.25], [130.25, 56.14644660940672], [130.5, 56.25], [130.75, 56.14644660940672], [131.0, 56.25], [131.25, 56.14644660940672], [131.32322330470336, 56.17677669529664], [131.46966991411009, 56.53033008588991], [132.0, 56.75], [132.25, 56.64644660940672], [132.5, 56.75], [132.75, 56.64644660940672], [132.82322330470336, 56.67677669529664], [132.96966991411009, 57.03033008588991], [133.5, 57.25], [133.75, 57.14644660940672], [134.0, 57.25], [134.53033008588991, 57.03033008588991], [134.67677669529664, 56.67677669529664], [134.75, 56.64644660940672], [135.0, 56.75], [135.25, 56.64644660940672], [135.5, 56.75], [135.75, 56.64644660940672], [136.0, 56.75], [136.53033008588991, 56.53033008588991], [136.75, 56.0], [136.53033008588991, 55.46966991411009], [136.0, 55.25], [135.75, 55.35355339059328], [135.5, 55.25], [135.25, 55.35355339059328], [135.17677669529664, 55.32322330470336], [135.03033008588991, 54.96966991411009], [134.5, 54.75], [134.25, 54.85355339059328], [134.17677669529664, 54.82322330470336], [134.03033008588991, 54.46966991411009], [133.5, 54.25], [133.25, 54.35355339059328], [133.0, 54.25], [132.75, 54.35355339059328], [132.67677669529664, 54.32322330470336], [132.53033008588991, 53.96966991411009], [132.0, 53.75], [131.75, 53.85355339059328], [131.5, 53.75], [131.25, 53.85355339059328], [131.0, 53.75], [130.75, 53.85355339059328], [130.5, 53.75], [129.96966991411009, 53.96966991411009], [129.82322330470336, 54.32322330470336], [129.75, 54.35355339059328], [129.67677669529664, 54.32322330470336], [129.53033008588991, 53.96966991411009], [129.0, 53.75], [128.75, 53.85355339059328], [128.5, 53.75], [128.25, 53.85355339059328], [128.0, 53.75], [127.46966991411009, 53.96966991411009], [127.25, 54.5], [127.35355339059328, 54.75]]]}, "2021-03-31T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[130.25, 54.85355339059328], [130.0, 54.75], [129.46966991411009, 54.96966991411009], [129.25, 55.5], [129.46966991411009, 56.03033008588991], [130.0, 56.25], [130.25, 56.14644660940672], [130.5, 56.25], [130.75, 56.14644660940672], [131.0, 56.25], [131.53033008588991, 56.03033008588991], [131.75, 55.5], [131.53033008588991, 54.96966991411009], [131.0, 54.75], [130.75, 54.85355339059328], [130.5, 54.75], [130.25, 54.85355339059328]]]}, "2021-04-01T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[130.75, 54.85355339059328], [130.5, 54.75], [129.96966991411009, 54.96966991411009], [129.75, 55.5], [129.96966991411009, 56.03033008588991], [130.5, 56.25], [130.75, 56.14644660940672], [131.0, 56.25], [131.53033008588991, 56.03033008588991], [131.75, 55.5], [131.53033008588991, 54.96966991411009], [131.0, 54.75], [130.75, 54.85355339059328]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.050650658085374}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.07391488713767}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-3.7616195218732855, -3.196476303102486, -2.800590324454447, -3.7880327403847787, -5.581940421435718, -4.96955266290496]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [0.8731500866921351, 2.5286801306359052, 1.778368478005234, 0.05917519413236505, -5.26274298726895, -4.5537178455502385]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.024951634292974, 7.348208842182393, 7.38944739253134, 6.053031061465485, 5.4427642517295, 5.984968263818473]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.050650658085374, 8.30051484475996, 8.881715380527794, 7.2335451435813525, 5.527582395510933, 6.054470727289186]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4452765594337604, 1.5481822842223334, 1.5865894851302333, 1.4357177830767203, 1.2319101081910129, 1.3758817362247084]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6753123604115827, 1.8875298696266505, 2.021877815982358, 1.6742066147066184, 1.2398310811900695, 1.3948388746948508]}}