ATPL met question
Hi Guys. im studying for the ATPL by distance learning (just started). and im tearing my hair out on a particular question. Its been a long day and maybe im being a doofus, but maybe you guys can point me in the right direction. I dont expect you to give the answer, id only be cheating myself!
a 10,000 foot mountain has a 5,000 foot cloudbase to windward and a 7,000 cloudbase to the lee. if the windward temp is +20 degrees C what would be the likely temp to the lee?
now my working was, assuming temp decrease @ DALR to 5,000, then decrease @ SALR to 10,000, then increase @ salr to 7000, then increase @ DALR back to surface, you come up with+23 degrees C !
the options for answers are
a-22.4
b-16.8
c-20.4
d-25.6 !!!!!
where the smeg am I going wrong ?!
of the possible answers 22.4 is the closest, do they add a little for the temp drop over the top of the mountain? however much that may be? or have I got some basic thing wrong? is there anything in the word 'likely' temp? that doesnt sound too specific !!!
am really enjoying my study by the way!!!