Temporal and Spatial Change Monitoring of Drought Grade Based on ERA5 Analysis Data and BFAST Method in the Belt and Road Area during 1989–2017

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Rank</td><td class="align_center">Category</td><td class="align_center">scPDSI</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">No drought</td><td class="align_center">&gt;−1.0</td></tr><tr><td class="align_left">2</td><td class="align_center">Slight drought</td><td class="align_center">−2.0 : −1.0</td></tr><tr><td class="align_left">3</td><td class="align_center">Medium drought</td><td class="align_center">−3.0 : −2.0</td></tr><tr><td class="align_left">4</td><td class="align_center">Severe drought</td><td class="align_center">−4.0 : −3.0</td></tr><tr><td class="align_left">5</td><td class="align_center">Extreme drought</td><td class="align_center">&lt;−4.0</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Drought category based on the scPDSI value.</div>

Advances in Meteorology

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Table 1

Table 1: Temporal and Spatial Change Monitoring of Drought Grade Based on ERA5 Analysis Data and BFAST Method in the Belt and Road Area during 1989–2017 

Table 1 | Temporal and Spatial Change Monitoring of Drought Grade Based on ERA5 Analysis Data and BFAST Method in the Belt and Road Area during 1989–2017 