<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.kisha wakakadiria kiwango cha fuwele kila siku, kila mwezi, na kila mwaka na wakachunguza jinsi ilibadilika zaidi ya miaka 37 ya masomo yao.  <response>: they then estimated the extent of the cryosphere on a daily, monthly and yearly basis and examined how it changed over the 37 years of their study. 