{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:14:41.441819", "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-Jun-21_to_2020-Jun-26_46.0_-17.5"}, "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": 2020060002719}, "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 21 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 26 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": 146510.68145323277}, "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": ["Madagascar"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Indian 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": -17.5}, "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": 46.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[45.354, -20.75], [45.25, -20.5], [45.354, -20.25], [45.354, -20.249], [45.25, -20.0], [45.354, -19.751], [45.354, -19.75], [45.25, -19.5], [45.354, -19.25], [45.323, -19.177], [44.97, -19.03], [44.75, -18.5], [44.854, -18.25], [44.823, -18.177], [44.751, -18.146], [44.75, -18.146], [44.5, -18.25], [44.25, -18.146], [44.0, -18.25], [43.47, -18.03], [43.25, -17.5], [43.47, -16.97], [43.823, -16.823], [43.97, -16.47], [44.323, -16.323], [44.47, -15.97], [44.823, -15.823], [44.97, -15.47], [45.5, -15.25], [45.75, -15.354], [46.0, -15.25], [46.25, -15.354], [46.5, -15.25], [47.03, -15.47], [47.25, -16.0], [47.146, -16.25], [47.25, -16.5], [47.146, -16.75], [47.25, -17.0], [47.146, -17.25], [47.146, -17.251], [47.177, -17.323], [47.53, -17.47], [47.677, -17.823], [48.03, -17.97], [48.177, -18.323], [48.53, -18.47], [48.677, -18.823], [49.03, -18.97], [49.25, -19.5], [49.146, -19.75], [49.25, -20.0], [49.03, -20.53], [48.5, -20.75], [48.25, -20.646], [48.0, -20.75], [47.75, -20.646], [47.677, -20.677], [47.53, -21.03], [47.177, -21.177], [47.156, -21.226], [47.146, -21.25], [47.25, -21.5], [47.03, -22.03], [46.5, -22.25], [45.97, -22.03], [45.823, -21.677], [45.47, -21.53], [45.25, -21.0], [45.354, -20.75]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.03033008588991, -18.96966991411009], [47.25, -19.5], [47.03033008588991, -20.03033008588991], [46.5, -20.25], [45.96966991411009, -20.03033008588991], [45.75, -19.5], [45.96966991411009, -18.96966991411009], [46.5, -18.75], [47.03033008588991, -18.96966991411009]]], [[[44.75, -17.0], [44.85355339059328, -16.75], [44.75, -16.5], [44.96966991411009, -15.969669914110089], [45.5, -15.75], [45.75, -15.853553390593275], [46.0, -15.75], [46.53033008588991, -15.969669914110089], [46.67677669529664, -16.32322330470336], [47.03033008588991, -16.46966991411009], [47.25, -17.0], [47.04289321881345, -17.5], [47.25, -18.0], [47.03033008588991, -18.53033008588991], [46.5, -18.75], [46.25, -18.646446609406727], [46.0, -18.75], [45.46966991411009, -18.53033008588991], [45.32322330470336, -18.17677669529664], [44.96966991411009, -18.03033008588991], [44.75, -17.5], [44.85355339059328, -17.25], [44.75, -17.0]]]]}, "2020-06-22T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[43.82322330470336, -16.82322330470336], [43.96966991411009, -16.46966991411009], [44.32322330470336, -16.32322330470336], [44.46966991411009, -15.969669914110089], [45.0, -15.75], [45.25, -15.853553390593275], [45.5, -15.75], [45.75, -15.853553390593275], [46.0, -15.75], [46.53033008588991, -15.969669914110089], [46.67677669529664, -16.32322330470336], [47.03033008588991, -16.46966991411009], [47.25, -17.0], [47.14644660940672, -17.25], [47.17677669529664, -17.32322330470336], [47.53033008588991, -17.46966991411009], [47.67677669529664, -17.82322330470336], [48.03033008588991, -17.96966991411009], [48.17677669529664, -18.32322330470336], [48.53033008588991, -18.46966991411009], [48.67677669529664, -18.82322330470336], [49.03033008588991, -18.96966991411009], [49.25, -19.5], [49.14644660940672, -19.75], [49.25, -20.0], [49.03033008588991, -20.53033008588991], [48.5, -20.75], [48.25, -20.646446609406727], [48.0, -20.75], [47.75, -20.646446609406727], [47.67677669529664, -20.67677669529664], [47.53033008588991, -21.03033008588991], [47.17677669529664, -21.17677669529664], [47.14644660940672, -21.25], [47.25, -21.5], [47.03033008588991, -22.03033008588991], [46.5, -22.25], [45.96966991411009, -22.03033008588991], [45.75, -21.5], [45.85355339059328, -21.25], [45.82322330470336, -21.17677669529664], [45.46966991411009, -21.03033008588991], [45.25, -20.5], [45.35355339059328, -20.25], [45.25, -20.0], [45.35355339059328, -19.75], [45.25, -19.5], [45.375, -19.198223304703365], [44.96966991411009, -19.03033008588991], [44.75, -18.5], [44.85355339059328, -18.25], [44.80177669529664, -18.125], [44.5, -18.25], [44.25, -18.146446609406727], [44.0, -18.25], [43.46966991411009, -18.03033008588991], [43.25, -17.5], [43.46966991411009, -16.96966991411009], [43.82322330470336, -16.82322330470336]]]}, "2020-06-23T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[43.82322330470336, -16.82322330470336], [43.96966991411009, -16.46966991411009], [44.32322330470336, -16.32322330470336], [44.46966991411009, -15.969669914110089], [45.0, -15.75], [45.25, -15.853553390593275], [45.5, -15.75], [45.75, -15.853553390593275], [46.0, -15.75], [46.53033008588991, -15.969669914110089], [46.67677669529664, -16.32322330470336], [47.03033008588991, -16.46966991411009], [47.25, -17.0], [47.14644660940672, -17.25], [47.17677669529664, -17.32322330470336], [47.53033008588991, -17.46966991411009], [47.67677669529664, -17.82322330470336], [48.03033008588991, -17.96966991411009], [48.17677669529664, -18.32322330470336], [48.53033008588991, -18.46966991411009], [48.67677669529664, -18.82322330470336], [49.03033008588991, -18.96966991411009], [49.25, -19.5], [49.14644660940672, -19.75], [49.25, -20.0], [49.03033008588991, -20.53033008588991], [48.5, -20.75], [48.25, -20.646446609406727], [48.0, -20.75], [47.75, -20.646446609406727], [47.67677669529664, -20.67677669529664], [47.53033008588991, -21.03033008588991], [47.17677669529664, -21.17677669529664], [47.14644660940672, -21.25], [47.25, -21.5], [47.03033008588991, -22.03033008588991], [46.5, -22.25], [45.96966991411009, -22.03033008588991], [45.82322330470336, -21.67677669529664], [45.46966991411009, -21.53033008588991], [45.25, -21.0], [45.35355339059328, -20.75], [45.25, -20.5], [45.35355339059328, -20.25], [45.25, -20.0], [45.35355339059328, -19.75], [45.25, -19.5], [45.35355339059328, -19.25], [45.32322330470336, -19.17677669529664], [44.96966991411009, -19.03033008588991], [44.75, -18.5], [44.85355339059328, -18.25], [44.82322330470336, -18.17677669529664], [44.75, -18.146446609406727], [44.5, -18.25], [44.25, -18.146446609406727], [44.0, -18.25], [43.46966991411009, -18.03033008588991], [43.25, -17.5], [43.46966991411009, -16.96966991411009], [43.82322330470336, -16.82322330470336]]]}, "2020-06-24T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[43.82322330470336, -16.82322330470336], [43.96966991411009, -16.46966991411009], [44.32322330470336, -16.32322330470336], [44.46966991411009, -15.969669914110089], [44.82322330470336, -15.823223304703363], [44.96966991411009, -15.469669914110089], [45.5, -15.25], [45.75, -15.353553390593275], [46.0, -15.25], [46.25, -15.353553390593275], [46.5, -15.25], [47.03033008588991, -15.469669914110089], [47.25, -16.0], [47.14644660940672, -16.25], [47.25, -16.5], [47.14644660940672, -16.75], [47.25, -17.0], [47.14644660940672, -17.25], [47.17677669529664, -17.32322330470336], [47.53033008588991, -17.46966991411009], [47.67677669529664, -17.82322330470336], [48.03033008588991, -17.96966991411009], [48.17677669529664, -18.32322330470336], [48.53033008588991, -18.46966991411009], [48.67677669529664, -18.82322330470336], [49.03033008588991, -18.96966991411009], [49.25, -19.5], [49.14644660940672, -19.75], [49.25, -20.0], [49.03033008588991, -20.53033008588991], [48.5, -20.75], [48.25, -20.646446609406727], [48.0, -20.75], [47.75, -20.646446609406727], [47.67677669529664, -20.67677669529664], [47.53033008588991, -21.03033008588991], [47.17677669529664, -21.17677669529664], [47.14644660940672, -21.25], [47.25, -21.5], [47.03033008588991, -22.03033008588991], [46.5, -22.25], [45.96966991411009, -22.03033008588991], [45.82322330470336, -21.67677669529664], [45.46966991411009, -21.53033008588991], [45.25, -21.0], [45.35355339059328, -20.75], [45.25, -20.5], [45.35355339059328, -20.25], [45.25, -20.0], [45.35355339059328, -19.75], [45.25, -19.5], [45.35355339059328, -19.25], [45.32322330470336, -19.17677669529664], [44.96966991411009, -19.03033008588991], [44.75, -18.5], [44.85355339059328, -18.25], [44.82322330470336, -18.17677669529664], [44.75, -18.146446609406727], [44.5, -18.25], [44.25, -18.146446609406727], [44.0, -18.25], [43.46966991411009, -18.03033008588991], [43.25, -17.5], [43.46966991411009, -16.96966991411009], [43.82322330470336, -16.82322330470336]]]}, "2020-06-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[43.85355339059328, -17.25], [43.75, -17.0], [43.96966991411009, -16.46966991411009], [44.32322330470336, -16.32322330470336], [44.46966991411009, -15.969669914110089], [44.82322330470336, -15.823223304703363], [44.96966991411009, -15.469669914110089], [45.5, -15.25], [45.75, -15.353553390593275], [46.0, -15.25], [46.25, -15.353553390593275], [46.5, -15.25], [47.03033008588991, -15.469669914110089], [47.25, -16.0], [47.14644660940672, -16.25], [47.25, -16.5], [47.14644660940672, -16.75], [47.25, -17.0], [47.14644660940672, -17.25], [47.17677669529664, -17.32322330470336], [47.53033008588991, -17.46966991411009], [47.75, -18.0], [47.64644660940672, -18.25], [47.75, -18.5], [47.64644660940672, -18.75], [47.67677669529664, -18.82322330470336], [48.03033008588991, -18.96966991411009], [48.25, -19.5], [48.03033008588991, -20.03033008588991], [47.67677669529664, -20.17677669529664], [47.53033008588991, -20.53033008588991], [47.17677669529664, -20.67677669529664], [47.14644660940672, -20.75], [47.25, -21.0], [47.03033008588991, -21.53033008588991], [46.5, -21.75], [46.25, -21.646446609406727], [46.0, -21.75], [45.46966991411009, -21.53033008588991], [45.25, -21.0], [45.35355339059328, -20.75], [45.25, -20.5], [45.45710678118655, -20.0], [45.25, -19.5], [45.35355339059328, -19.25], [45.25, -19.0], [45.35355339059328, -18.75], [45.25, -18.5], [45.35355339059328, -18.25], [45.32322330470336, -18.17677669529664], [45.25, -18.146446609406727], [45.0, -18.25], [44.75, -18.146446609406727], [44.5, -18.25], [43.96966991411009, -18.03033008588991], [43.75, -17.5], [43.85355339059328, -17.25]]]}, "2020-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.53033008588991, -21.53033008588991], [46.0, -21.75], [45.46966991411009, -21.53033008588991], [45.25, -21.0], [45.46966991411009, -20.46966991411009], [46.0, -20.25], [46.53033008588991, -20.46966991411009], [46.75, -21.0], [46.53033008588991, -21.53033008588991]]], [[[46.75, -19.0], [46.53033008588991, -19.53033008588991], [46.0, -19.75], [45.46966991411009, -19.53033008588991], [45.25, -19.0], [45.46966991411009, -18.46966991411009], [46.0, -18.25], [46.53033008588991, -18.46966991411009], [46.75, -19.0]]], [[[44.85355339059328, -16.75], [44.75, -16.5], [44.85355339059328, -16.25], [44.75, -16.0], [44.96966991411009, -15.469669914110089], [45.5, -15.25], [45.75, -15.353553390593275], [46.0, -15.25], [46.25, -15.353553390593275], [46.5, -15.25], [47.03033008588991, -15.469669914110089], [47.25, -16.0], [47.14644660940672, -16.25], [47.25, -16.5], [47.14644660940672, -16.75], [47.25, -17.0], [47.03033008588991, -17.53033008588991], [46.67677669529664, -17.67677669529664], [46.53033008588991, -18.03033008588991], [46.0, -18.25], [45.75, -18.146446609406727], [45.5, -18.25], [44.96966991411009, -18.03033008588991], [44.75, -17.5], [44.85355339059328, -17.25], [44.75, -17.0], [44.85355339059328, -16.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.8767706081399638}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1502984318577534}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.59507694448996, 20.737988373169287, 20.836864033303186, 21.492449657081693, 21.805890719568424, 24.520819532526048]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.393264871281588, 26.565261135148205, 26.269130542878486, 26.59811072660466, 26.531927274530233, 26.468891572005703]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8446817469876293, 2.160877513743163, 2.2085981728465987, 2.41678014037867, 1.9563608187038126, 1.6562328079837347]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3501689342255077, 3.2146983183942552, 3.513905777469745, 3.8767706081399638, 2.6651116718761614, 2.046326005112462]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.711802509288108, 1.8888373538671805, 1.9059356794150109, 2.082480757242072, 1.7056618910242498, 1.6063162078771325]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.301120160706656, 2.5200854078188932, 2.689228448112316, 3.120611875476403, 2.1507661932117, 1.854994627196429]}}