Research on Spatio-Temporal Variation of Annual Precipitation in Henan Province by Information Entropy
WANG Zhen-ya,WU De-bo,ZHU Yu-sheng
JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI . 2013, (11): 16 -19 .  DOI: 10.3969/j.issn.1001-5485.2013.11.0042013,30(11):16-19