This large sea serves as the Sahara's northern boundary
Since it is navigable for most of its 3600 miles, the Yangtze serves as an 
important... [DOC] [TLE] Multi-model trends in the Sahara induced by increasing CO2 [PAR] Sep 25, 2002 ... such as large scale circulation [Wolter, 1989], sea temper- ature [Palmer, 1986] ... 
mean of year 4180 serves as a reference.