What type of technology would be needed to gather evidence of a jet stream

Jet streams are air currents which are fast flowing and narrow and are found in the atmosphere of various planets including our home, mother Earth. It was a Japanese Meteorologist who is known to have discovered a jet stream in 1920s. He tracked the winds with weather balloons and that same method is commonly used even today. 

answerblank(1); khirbat al-mafjar,blank(2); ostracon.blank(3); //hisham,blank(4),; //lion; blank(5); gazelle;

answer biscay bay;