div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentintroduction-northern-hemisphere-isocasm-map-research-webpdxedujduhcoursesgeog492w17projects17rogerslhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Introduction Northern Hemisphere Isocasm Map Research …webpdxedu~jduhcoursesgeog492w17Projects17_RogersL · 2017 3 22 · National Geographic 2014 Northern Lights loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader035fdocumentsnetreader035viewer20220710195fd327bb2e1dda249b75ab08html5thumbnails1jpg width=140 height=200 divdiv