Effects of habitat feature, antenna position, movement, and fix interval on GPS radio collar performance in Mount Fuji, central Japan

2007 ◽  
Vol 23 (3) ◽  
pp. 581-588 ◽  
Author(s):  
Zhaowen Jiang ◽  
Mikio Sugita ◽  
Masahiko Kitahara ◽  
Seiki Takatsuki ◽  
Takehiro Goto ◽  
...  
2015 ◽  
Vol 19 (1) ◽  
pp. 96-105 ◽  
Author(s):  
Danda Pani Adikari

Mount Fuji (3776 m), Japan's highest mountain and one of the world's most picturesque stratovolcano was studied to give an overview of its hydrogeological features. The mountain was made from voluminous lava flows and pyroclastic materials produced through three generations of volcanic activities. The volcanic products, characterized by abundant pore spaces and fractures, play a role as productive aquifers by absorbing and storing rain and snow melt as groundwater and releasing it over a long period. Its foot slopes contain abundant water with Fuji-Five-Lakes in the north and hundreds of springs with enormous discharge to the south, leaving the upper slopes dry. Approximately 2.2 billion tons of rain and snow fall annually at Mt. Fuji, and ~4.5 million tons of groundwater is stored each day in average. The total amount of spring or groundwater discharge from Mt. Fuji is estimated at 6.55 x 106 m3/day and that in its southwestern slopes is ~1.76 x 106 m3/day. Rain and snow falling above the altitude of ~1,000 m is their main source of recharge. The water provides vital resources for the people living around it; however, over exploitation of this resource have already caused some decline in its quality and quantity.Journal of Institute of Science and Technology, 2014, 19(1): 96-105


2005 ◽  
Vol 10 (5) ◽  
pp. 359-365 ◽  
Author(s):  
Zhaowen Jiang ◽  
Hironori Ueda ◽  
Masahiko Kitahara ◽  
Hiroo Imaki

Radiocarbon ◽  
2020 ◽  
Vol 62 (2) ◽  
pp. 439-451 ◽  
Author(s):  
Shinya Yamamoto ◽  
Yosuke Miyairi ◽  
Yusuke Yokoyama ◽  
Hisami Suga ◽  
Nanako O Ogawa ◽  
...  

ABSTRACTDifferential sources of sedimentary organic compounds in a volcanic region were revealed by determining radiocarbon content (Δ14C) of organic compounds in surface sediments from Lake Kawaguchi, at the northern foot of Mount Fuji, central Japan. The Δ14C values of C16 fatty acid (−124‰) and chlorophyll a (Chl a) (−133‰) were similar to the Δ14C of dissolved inorganic carbon (DIC) in surface water (−117‰), suggesting that a significant portion of these compounds originated from modern primary producers with a reservoir age of ~1000 years. On the other hand, a large offset between the Δ14C values of Chl a (−133‰) and those of 132, 173-cyclopheophorbide-a-enol (−169‰) and pheophytin a (−179‰) suggested contributions from older pigments. In addition, the Δ14C of long-chain (C24, C26, and C28) fatty acids (−183 to −75‰) showed a large offset from that of a plant leaf remain (0‰) within sediments, demonstrating that the long-chain fatty acids were affected by substantial contributions from pre-aged terrestrial materials. Overall, the sedimentary organic compounds gave 14C ages older than the plant leaf fragment within sediments; however, the similarity between Δ14C of the C16 fatty acid and DIC implies potential for applying compound-specific radiocarbon analysis as a dating tool in volcanic lake environments.


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