Skip to main content
Progress in Earth and Planetary Science

Table 2 Implementation record of hydrographic observations along the Shiriya–Esan (SE) line. U, O, and W represent the observations made by T/S Ushio-Maru, T/S Oshoro-Maru, and R/V Wakataka-Maru, respectively

From: Subinertial frequency variations in the axis of the Tsugaru Warm Current east of the Tsugaru Strait

 

Winter

Spring

Summer

Autumn

Year

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

2009

          

U

 

2010

 

U

  

U

  

U

  

U

 

2011

 

O

  

U

 

U

   

U

 

2012

 

U

   

U

 

U

  

U

 

2013

    

U

  

U

    

2014

 

U

  

U

  

U

  

U

 

2015

 

U

U

 

U

     

U

 

2016

 

U

  

U

U

    

U

 

2017

    

U

       

2018

 

U

     

W

    

2019

   

U

    

W

 

U

 
Back to article page