Added sealevel sample data
Added sealevel sample data

moreati/pandashells,shaunstanislaus/pandashells,shaunstanislaus/pandashells,subodhchhabra/pandashells,StevenBlack/pandashells,micahhausler/pandashells,subodhchhabra/pandashells,codevlabs/pandashells,micahhausler/pandashells,StevenBlack/pandashells,jayhetee/pandashells,jayhetee/pandashells,iiSeymour/pandashells,moreati/pandashells,wavelets/pandashells,wavelets/pandashells,codevlabs/pandashells,iiSeymour/pandashells