{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:17:16.572150", "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-Jul-04_to_2020-Jul-09_87.0_33.5"}, "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": 2020070001611}, "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": "July 04 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 09 2020"}, "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": 165245.256373382}, "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": ["China"]}, "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": 33.5}, "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": 87.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "87.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 82.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 88.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[86.0, 30.75], [85.47, 30.97], [85.25, 31.5], [85.354, 31.75], [85.323, 31.823], [84.97, 31.97], [84.823, 32.323], [84.75, 32.354], [84.5, 32.25], [83.97, 32.47], [83.802, 32.875], [83.5, 32.75], [82.97, 32.97], [82.823, 33.323], [82.75, 33.354], [82.5, 33.25], [81.97, 33.47], [81.75, 34.0], [81.97, 34.53], [82.5, 34.75], [82.75, 34.646], [82.823, 34.677], [82.854, 34.75], [82.854, 34.751], [82.75, 35.0], [82.97, 35.53], [83.5, 35.75], [83.75, 35.646], [84.0, 35.75], [84.25, 35.646], [84.5, 35.75], [85.03, 35.53], [85.177, 35.177], [85.25, 35.146], [85.5, 35.25], [85.802, 35.125], [85.97, 35.53], [86.5, 35.75], [86.75, 35.646], [87.0, 35.75], [87.25, 35.646], [87.5, 35.75], [88.03, 35.53], [88.177, 35.177], [88.25, 35.146], [88.5, 35.25], [89.03, 35.03], [89.25, 34.5], [89.03, 33.97], [88.677, 33.823], [88.656, 33.774], [88.646, 33.75], [88.75, 33.5], [88.646, 33.25], [88.75, 33.0], [88.646, 32.75], [88.75, 32.5], [88.646, 32.25], [88.75, 32.0], [88.646, 31.75], [88.677, 31.677], [89.03, 31.53], [89.25, 31.0], [89.03, 30.47], [88.5, 30.25], [88.25, 30.354], [88.0, 30.25], [87.75, 30.354], [87.5, 30.25], [87.25, 30.354], [87.0, 30.25], [86.47, 30.47], [86.302, 30.875], [86.0, 30.75]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-04T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[85.75, 31.853553390593273], [85.5, 31.75], [84.96966991411009, 31.96966991411009], [84.75, 32.5], [84.96966991411009, 33.03033008588991], [85.5, 33.25], [85.75, 33.14644660940672], [86.0, 33.25], [86.53033008588991, 33.03033008588991], [86.75, 32.5], [86.53033008588991, 31.96966991411009], [86.0, 31.75], [85.75, 31.853553390593273]]]}, "2020-07-05T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[82.75, 33.35355339059328], [82.5, 33.25], [81.96966991411009, 33.46966991411009], [81.75, 34.0], [81.96966991411009, 34.53033008588991], [82.5, 34.75], [82.75, 34.64644660940672], [82.82322330470336, 34.67677669529664], [82.96966991411009, 35.03033008588991], [83.5, 35.25], [83.75, 35.14644660940672], [83.82322330470336, 35.17677669529664], [83.96966991411009, 35.53033008588991], [84.5, 35.75], [85.03033008588991, 35.53033008588991], [85.17677669529664, 35.17677669529664], [85.25, 35.14644660940672], [85.5, 35.25], [85.80177669529664, 35.125], [85.96966991411009, 35.53033008588991], [86.5, 35.75], [86.75, 35.64644660940672], [87.0, 35.75], [87.25, 35.64644660940672], [87.5, 35.75], [88.03033008588991, 35.53033008588991], [88.25, 35.0], [88.14644660940672, 34.75], [88.17677669529664, 34.67677669529664], [88.53033008588991, 34.53033008588991], [88.75, 34.0], [88.53033008588991, 33.46966991411009], [88.17677669529664, 33.32322330470336], [88.14644660940672, 33.25], [88.25, 33.0], [88.14644660940672, 32.75], [88.25, 32.5], [88.14644660940672, 32.25], [88.25, 32.0], [88.03033008588991, 31.46966991411009], [87.67677669529664, 31.32322330470336], [87.53033008588991, 30.96966991411009], [87.0, 30.75], [86.5, 30.957106781186546], [86.0, 30.75], [85.46966991411009, 30.96966991411009], [85.25, 31.5], [85.35355339059328, 31.75], [85.32322330470336, 31.82322330470336], [84.96966991411009, 31.96966991411009], [84.82322330470336, 32.32322330470336], [84.75, 32.35355339059328], [84.5, 32.25], [83.96966991411009, 32.46966991411009], [83.80177669529664, 32.875], [83.5, 32.75], [82.96966991411009, 32.96966991411009], [82.82322330470336, 33.32322330470336], [82.75, 33.35355339059328]]]}, "2020-07-06T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[82.75, 33.35355339059328], [82.5, 33.25], [81.96966991411009, 33.46966991411009], [81.75, 34.0], [81.96966991411009, 34.53033008588991], [82.5, 34.75], [82.75, 34.64644660940672], [82.82322330470336, 34.67677669529664], [82.85355339059328, 34.75], [82.75, 35.0], [82.96966991411009, 35.53033008588991], [83.5, 35.75], [83.75, 35.64644660940672], [84.0, 35.75], [84.25, 35.64644660940672], [84.5, 35.75], [85.03033008588991, 35.53033008588991], [85.17677669529664, 35.17677669529664], [85.25, 35.14644660940672], [85.5, 35.25], [85.80177669529664, 35.125], [85.96966991411009, 35.53033008588991], [86.5, 35.75], [86.75, 35.64644660940672], [87.0, 35.75], [87.25, 35.64644660940672], [87.5, 35.75], [88.03033008588991, 35.53033008588991], [88.17677669529664, 35.17677669529664], [88.25, 35.14644660940672], [88.5, 35.25], [89.03033008588991, 35.03033008588991], [89.25, 34.5], [89.03033008588991, 33.96966991411009], [88.67677669529664, 33.82322330470336], [88.64644660940672, 33.75], [88.75, 33.5], [88.64644660940672, 33.25], [88.75, 33.0], [88.64644660940672, 32.75], [88.75, 32.5], [88.64644660940672, 32.25], [88.75, 32.0], [88.64644660940672, 31.75], [88.67677669529664, 31.67677669529664], [89.03033008588991, 31.53033008588991], [89.25, 31.0], [89.03033008588991, 30.46966991411009], [88.5, 30.25], [88.25, 30.353553390593273], [88.0, 30.25], [87.75, 30.353553390593273], [87.5, 30.25], [87.25, 30.353553390593273], [87.0, 30.25], [86.46966991411009, 30.46966991411009], [86.30177669529664, 30.875], [86.0, 30.75], [85.46966991411009, 30.96966991411009], [85.25, 31.5], [85.35355339059328, 31.75], [85.32322330470336, 31.82322330470336], [84.96966991411009, 31.96966991411009], [84.82322330470336, 32.32322330470336], [84.75, 32.35355339059328], [84.5, 32.25], [83.96966991411009, 32.46966991411009], [83.80177669529664, 32.875], [83.5, 32.75], [82.96966991411009, 32.96966991411009], [82.82322330470336, 33.32322330470336], [82.75, 33.35355339059328]]]}, "2020-07-07T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[82.75, 33.35355339059328], [82.5, 33.25], [81.96966991411009, 33.46966991411009], [81.75, 34.0], [81.96966991411009, 34.53033008588991], [82.5, 34.75], [82.75, 34.64644660940672], [82.82322330470336, 34.67677669529664], [82.85355339059328, 34.75], [82.75, 35.0], [82.96966991411009, 35.53033008588991], [83.5, 35.75], [83.75, 35.64644660940672], [84.0, 35.75], [84.25, 35.64644660940672], [84.5, 35.75], [85.03033008588991, 35.53033008588991], [85.17677669529664, 35.17677669529664], [85.25, 35.14644660940672], [85.5, 35.25], [85.80177669529664, 35.125], [85.96966991411009, 35.53033008588991], [86.5, 35.75], [86.75, 35.64644660940672], [87.0, 35.75], [87.25, 35.64644660940672], [87.5, 35.75], [88.03033008588991, 35.53033008588991], [88.17677669529664, 35.17677669529664], [88.25, 35.14644660940672], [88.5, 35.25], [89.03033008588991, 35.03033008588991], [89.25, 34.5], [89.03033008588991, 33.96966991411009], [88.67677669529664, 33.82322330470336], [88.64644660940672, 33.75], [88.75, 33.5], [88.64644660940672, 33.25], [88.75, 33.0], [88.64644660940672, 32.75], [88.75, 32.5], [88.64644660940672, 32.25], [88.75, 32.0], [88.64644660940672, 31.75], [88.67677669529664, 31.67677669529664], [89.03033008588991, 31.53033008588991], [89.25, 31.0], [89.03033008588991, 30.46966991411009], [88.5, 30.25], [88.25, 30.353553390593273], [88.0, 30.25], [87.75, 30.353553390593273], [87.5, 30.25], [87.25, 30.353553390593273], [87.0, 30.25], [86.46966991411009, 30.46966991411009], [86.30177669529664, 30.875], [86.0, 30.75], [85.46966991411009, 30.96966991411009], [85.25, 31.5], [85.35355339059328, 31.75], [85.32322330470336, 31.82322330470336], [84.96966991411009, 31.96966991411009], [84.82322330470336, 32.32322330470336], [84.75, 32.35355339059328], [84.5, 32.25], [83.96966991411009, 32.46966991411009], [83.80177669529664, 32.875], [83.5, 32.75], [82.96966991411009, 32.96966991411009], [82.82322330470336, 33.32322330470336], [82.75, 33.35355339059328]]]}, "2020-07-08T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[82.85355339059328, 34.75], [82.75, 35.0], [82.96966991411009, 35.53033008588991], [83.5, 35.75], [83.75, 35.64644660940672], [84.0, 35.75], [84.25, 35.64644660940672], [84.5, 35.75], [85.03033008588991, 35.53033008588991], [85.17677669529664, 35.17677669529664], [85.25, 35.14644660940672], [85.5, 35.25], [85.80177669529664, 35.125], [85.96966991411009, 35.53033008588991], [86.5, 35.75], [86.75, 35.64644660940672], [87.0, 35.75], [87.25, 35.64644660940672], [87.5, 35.75], [88.03033008588991, 35.53033008588991], [88.17677669529664, 35.17677669529664], [88.25, 35.14644660940672], [88.5, 35.25], [89.03033008588991, 35.03033008588991], [89.25, 34.5], [89.03033008588991, 33.96966991411009], [88.67677669529664, 33.82322330470336], [88.64644660940672, 33.75], [88.75, 33.5], [88.64644660940672, 33.25], [88.75, 33.0], [88.64644660940672, 32.75], [88.75, 32.5], [88.64644660940672, 32.25], [88.75, 32.0], [88.64644660940672, 31.75], [88.67677669529664, 31.67677669529664], [89.03033008588991, 31.53033008588991], [89.25, 31.0], [89.03033008588991, 30.46966991411009], [88.5, 30.25], [88.25, 30.353553390593273], [88.0, 30.25], [87.75, 30.353553390593273], [87.5, 30.25], [87.25, 30.353553390593273], [87.0, 30.25], [86.46966991411009, 30.46966991411009], [86.25, 31.0], [86.35355339059328, 31.25], [86.25, 31.5], [86.35355339059328, 31.75], [86.25, 32.0], [86.35355339059328, 32.25], [86.32322330470336, 32.32322330470336], [85.96966991411009, 32.46966991411009], [85.82322330470336, 32.82322330470336], [85.75, 32.85355339059328], [85.5, 32.75], [84.96966991411009, 32.96966991411009], [84.82322330470336, 33.32322330470336], [84.75, 33.35355339059328], [84.5, 33.25], [84.25, 33.35355339059328], [84.0, 33.25], [83.46966991411009, 33.46966991411009], [83.32322330470336, 33.82322330470336], [82.96966991411009, 33.96966991411009], [82.75, 34.5], [82.85355339059328, 34.75]]]}, "2020-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.0, 30.25], [86.46966991411009, 30.46966991411009], [86.25, 31.0], [86.46966991411009, 31.53033008588991], [87.0, 31.75], [87.25, 31.646446609406727], [87.5, 31.75], [88.03033008588991, 31.53033008588991], [88.25, 31.0], [88.03033008588991, 30.46966991411009], [87.5, 30.25], [87.25, 30.353553390593273], [87.0, 30.25]]], [[[86.46966991411009, 32.96966991411009], [86.25, 33.5], [86.46966991411009, 34.03033008588991], [87.0, 34.25], [87.53033008588991, 34.03033008588991], [87.67677669529664, 33.67677669529664], [88.03033008588991, 33.53033008588991], [88.25, 33.0], [88.03033008588991, 32.46966991411009], [87.5, 32.25], [86.96966991411009, 32.46966991411009], [86.82322330470336, 32.82322330470336], [86.46966991411009, 32.96966991411009]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.174160727813614}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.52847333651018}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.810269624508692, 9.861962873317168, 10.649334431675186, 10.346981522721194, 9.265431003117726, 10.813281249813713]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.5148632554031, 15.783569602765908, 16.06321113850356, 15.550042316050565, 14.499802963317961, 12.420269924075342]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.482270303583533, 3.3793263089613346, 3.9940767801336063, 3.6709798632410484, 2.9782327996294646, 2.2890396142339853]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.5715430446082337, 4.754496801372795, 6.174160727813614, 5.587766773985095, 3.977568676059377, 2.6016102297793395]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6507280880923405, 1.693326269022665, 2.1291079401090793, 1.9362476520612308, 1.5841990648860775, 1.267368016136745]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6802896542682062, 2.2921097956674084, 3.1021505216362355, 2.7586666834332685, 2.0112250955753512, 1.333035624841266]}}