{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:11:59.248560", "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": "2020-Mar-02_to_2020-Mar-05_95.5_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": 2020030001200}, "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 02 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 05 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 105533.66841638925}, "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": 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": 95.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "95.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 91.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 98.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 69.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[99.03, 65.97], [98.677, 65.823], [98.53, 65.47], [98.177, 65.323], [98.03, 64.97], [97.677, 64.823], [97.53, 64.47], [97.0, 64.25], [96.75, 64.354], [96.5, 64.25], [95.97, 64.47], [95.823, 64.823], [95.75, 64.854], [95.5, 64.75], [95.25, 64.854], [95.0, 64.75], [94.75, 64.854], [94.5, 64.75], [94.25, 64.854], [94.0, 64.75], [93.75, 64.854], [93.5, 64.75], [93.25, 64.854], [93.0, 64.75], [92.75, 64.854], [92.5, 64.75], [91.97, 64.97], [91.75, 65.5], [91.854, 65.75], [91.75, 66.0], [91.854, 66.25], [91.823, 66.323], [91.75, 66.354], [91.677, 66.323], [91.53, 65.97], [91.0, 65.75], [90.47, 65.97], [90.25, 66.5], [90.457, 67.0], [90.25, 67.5], [90.47, 68.03], [90.823, 68.177], [90.97, 68.53], [91.5, 68.75], [91.75, 68.646], [91.823, 68.677], [91.97, 69.03], [92.5, 69.25], [92.75, 69.146], [93.0, 69.25], [93.25, 69.146], [93.323, 69.177], [93.47, 69.53], [94.0, 69.75], [94.53, 69.53], [94.677, 69.177], [94.75, 69.146], [95.0, 69.25], [95.53, 69.03], [95.677, 68.677], [95.75, 68.646], [96.0, 68.75], [96.25, 68.646], [96.5, 68.75], [96.75, 68.646], [97.0, 68.75], [97.53, 68.53], [97.677, 68.177], [98.03, 68.03], [98.177, 67.677], [98.25, 67.646], [98.5, 67.75], [99.03, 67.53], [99.25, 67.0], [99.146, 66.75], [99.25, 66.5], [99.03, 65.97]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic", "E.Siberia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-03-02T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[90.45710678118654, 67.0], [90.25, 67.5], [90.46966991411009, 68.03033008588991], [90.82322330470336, 68.17677669529664], [90.96966991411009, 68.53033008588991], [91.5, 68.75], [91.75, 68.64644660940672], [91.82322330470336, 68.67677669529664], [91.96966991411009, 69.03033008588991], [92.5, 69.25], [92.75, 69.14644660940672], [93.0, 69.25], [93.25, 69.14644660940672], [93.32322330470336, 69.17677669529664], [93.46966991411009, 69.53033008588991], [94.0, 69.75], [94.53033008588991, 69.53033008588991], [94.67677669529664, 69.17677669529664], [94.75, 69.14644660940672], [95.0, 69.25], [95.53033008588991, 69.03033008588991], [95.67677669529664, 68.67677669529664], [95.75, 68.64644660940672], [96.0, 68.75], [96.25, 68.64644660940672], [96.5, 68.75], [96.75, 68.64644660940672], [97.0, 68.75], [97.53033008588991, 68.53033008588991], [97.67677669529664, 68.17677669529664], [98.03033008588991, 68.03033008588991], [98.17677669529664, 67.67677669529664], [98.25, 67.64644660940672], [98.5, 67.75], [99.03033008588991, 67.53033008588991], [99.25, 67.0], [99.14644660940672, 66.75], [99.25, 66.5], [99.03033008588991, 65.96966991411009], [98.67677669529664, 65.82322330470336], [98.53033008588991, 65.46966991411009], [98.17677669529664, 65.32322330470336], [98.03033008588991, 64.96966991411009], [97.67677669529664, 64.82322330470336], [97.53033008588991, 64.46966991411009], [97.0, 64.25], [96.75, 64.35355339059328], [96.5, 64.25], [95.96966991411009, 64.46966991411009], [95.82322330470336, 64.82322330470336], [95.75, 64.85355339059328], [95.5, 64.75], [95.25, 64.85355339059328], [95.0, 64.75], [94.75, 64.85355339059328], [94.5, 64.75], [94.25, 64.85355339059328], [94.0, 64.75], [93.75, 64.85355339059328], [93.5, 64.75], [93.25, 64.85355339059328], [93.0, 64.75], [92.75, 64.85355339059328], [92.5, 64.75], [91.96966991411009, 64.96966991411009], [91.75, 65.5], [91.85355339059328, 65.75], [91.75, 66.0], [91.85355339059328, 66.25], [91.82322330470336, 66.32322330470336], [91.75, 66.35355339059328], [91.67677669529664, 66.32322330470336], [91.53033008588991, 65.96966991411009], [91.0, 65.75], [90.46966991411009, 65.96966991411009], [90.25, 66.5], [90.45710678118654, 67.0]]]}, "2020-03-03T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[90.45710678118654, 67.0], [90.25, 67.5], [90.46966991411009, 68.03033008588991], [90.82322330470336, 68.17677669529664], [90.96966991411009, 68.53033008588991], [91.5, 68.75], [91.75, 68.64644660940672], [91.82322330470336, 68.67677669529664], [91.96966991411009, 69.03033008588991], [92.5, 69.25], [92.75, 69.14644660940672], [93.0, 69.25], [93.25, 69.14644660940672], [93.32322330470336, 69.17677669529664], [93.46966991411009, 69.53033008588991], [94.0, 69.75], [94.53033008588991, 69.53033008588991], [94.67677669529664, 69.17677669529664], [94.75, 69.14644660940672], [95.0, 69.25], [95.53033008588991, 69.03033008588991], [95.67677669529664, 68.67677669529664], [95.75, 68.64644660940672], [96.0, 68.75], [96.25, 68.64644660940672], [96.5, 68.75], [96.75, 68.64644660940672], [97.0, 68.75], [97.53033008588991, 68.53033008588991], [97.67677669529664, 68.17677669529664], [98.03033008588991, 68.03033008588991], [98.17677669529664, 67.67677669529664], [98.25, 67.64644660940672], [98.5, 67.75], [99.03033008588991, 67.53033008588991], [99.25, 67.0], [99.14644660940672, 66.75], [99.25, 66.5], [99.03033008588991, 65.96966991411009], [98.67677669529664, 65.82322330470336], [98.53033008588991, 65.46966991411009], [98.17677669529664, 65.32322330470336], [98.03033008588991, 64.96966991411009], [97.67677669529664, 64.82322330470336], [97.53033008588991, 64.46966991411009], [97.0, 64.25], [96.75, 64.35355339059328], [96.5, 64.25], [95.96966991411009, 64.46966991411009], [95.82322330470336, 64.82322330470336], [95.75, 64.85355339059328], [95.5, 64.75], [95.25, 64.85355339059328], [95.0, 64.75], [94.75, 64.85355339059328], [94.5, 64.75], [94.25, 64.85355339059328], [94.0, 64.75], [93.75, 64.85355339059328], [93.5, 64.75], [93.25, 64.85355339059328], [93.0, 64.75], [92.75, 64.85355339059328], [92.5, 64.75], [91.96966991411009, 64.96966991411009], [91.75, 65.5], [91.85355339059328, 65.75], [91.75, 66.0], [91.85355339059328, 66.25], [91.82322330470336, 66.32322330470336], [91.75, 66.35355339059328], [91.67677669529664, 66.32322330470336], [91.53033008588991, 65.96966991411009], [91.0, 65.75], [90.46966991411009, 65.96966991411009], [90.25, 66.5], [90.45710678118654, 67.0]]]}, "2020-03-04T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[90.45710678118654, 67.0], [90.25, 67.5], [90.46966991411009, 68.03033008588991], [90.82322330470336, 68.17677669529664], [90.96966991411009, 68.53033008588991], [91.5, 68.75], [91.75, 68.64644660940672], [91.82322330470336, 68.67677669529664], [91.96966991411009, 69.03033008588991], [92.5, 69.25], [92.75, 69.14644660940672], [93.0, 69.25], [93.25, 69.14644660940672], [93.32322330470336, 69.17677669529664], [93.46966991411009, 69.53033008588991], [94.0, 69.75], [94.53033008588991, 69.53033008588991], [94.67677669529664, 69.17677669529664], [94.75, 69.14644660940672], [95.0, 69.25], [95.53033008588991, 69.03033008588991], [95.67677669529664, 68.67677669529664], [95.75, 68.64644660940672], [96.0, 68.75], [96.25, 68.64644660940672], [96.5, 68.75], [96.75, 68.64644660940672], [97.0, 68.75], [97.53033008588991, 68.53033008588991], [97.67677669529664, 68.17677669529664], [98.03033008588991, 68.03033008588991], [98.17677669529664, 67.67677669529664], [98.25, 67.64644660940672], [98.5, 67.75], [99.03033008588991, 67.53033008588991], [99.25, 67.0], [99.14644660940672, 66.75], [99.25, 66.5], [99.03033008588991, 65.96966991411009], [98.67677669529664, 65.82322330470336], [98.53033008588991, 65.46966991411009], [98.17677669529664, 65.32322330470336], [98.03033008588991, 64.96966991411009], [97.67677669529664, 64.82322330470336], [97.53033008588991, 64.46966991411009], [97.0, 64.25], [96.75, 64.35355339059328], [96.5, 64.25], [95.96966991411009, 64.46966991411009], [95.82322330470336, 64.82322330470336], [95.75, 64.85355339059328], [95.5, 64.75], [95.25, 64.85355339059328], [95.0, 64.75], [94.75, 64.85355339059328], [94.5, 64.75], [94.25, 64.85355339059328], [94.0, 64.75], [93.75, 64.85355339059328], [93.5, 64.75], [93.25, 64.85355339059328], [93.0, 64.75], [92.75, 64.85355339059328], [92.5, 64.75], [91.96966991411009, 64.96966991411009], [91.75, 65.5], [91.85355339059328, 65.75], [91.75, 66.0], [91.85355339059328, 66.25], [91.82322330470336, 66.32322330470336], [91.75, 66.35355339059328], [91.67677669529664, 66.32322330470336], [91.53033008588991, 65.96966991411009], [91.0, 65.75], [90.46966991411009, 65.96966991411009], [90.25, 66.5], [90.45710678118654, 67.0]]]}, "2020-03-05T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[94.75, 65.85355339059328], [94.5, 65.75], [93.96966991411009, 65.96966991411009], [93.75, 66.5], [93.96966991411009, 67.03033008588991], [94.5, 67.25], [94.75, 67.14644660940672], [94.875, 67.19822330470336], [94.75, 67.5], [94.96966991411009, 68.03033008588991], [95.5, 68.25], [95.75, 68.14644660940672], [96.0, 68.25], [96.53033008588991, 68.03033008588991], [96.75, 67.5], [96.625, 67.19822330470336], [96.75, 67.14644660940672], [97.0, 67.25], [97.25, 67.14644660940672], [97.5, 67.25], [97.75, 67.14644660940672], [98.0, 67.25], [98.25, 67.14644660940672], [98.5, 67.25], [99.03033008588991, 67.03033008588991], [99.25, 66.5], [99.03033008588991, 65.96966991411009], [98.67677669529664, 65.82322330470336], [98.53033008588991, 65.46966991411009], [98.0, 65.25], [97.75, 65.35355339059328], [97.5, 65.25], [97.25, 65.35355339059328], [97.0, 65.25], [96.75, 65.35355339059328], [96.5, 65.25], [96.25, 65.35355339059328], [96.0, 65.25], [95.46966991411009, 65.46966991411009], [95.32322330470336, 65.82322330470336], [95.25, 65.85355339059328], [95.0, 65.75], [94.75, 65.85355339059328]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 17.272383876819617}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 13.495488897451358}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-9.730003511890686, -11.270471618939553, -11.733919864963354, -12.652808254900947]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.146439560876672, -8.169966766306288, -7.251751540942735, -11.405218716095703]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [15.158150808479855, 13.139195677848193, 12.49685812061068, 11.710608992860308]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [17.272383876819617, 14.457315564429905, 14.738679088299108, 12.602944325297841]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8859659134568643, 1.6166770906795744, 1.5314825418252187, 1.3980203859901803]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.290240131713984, 1.9481402162149692, 1.7101126914899947, 1.4303147401964091]}}