Mid‐Latitude Thermosphere‐Ionosphere Na (TINa) Layers Observed With High‐Sensitivity Na Doppler Lidar Over Boulder (40.13°N, 105.24°W)

[1 ]Cooperative Institute of Research in Environmental Sciences & Department of Aerospace Engineering Sciences University of Colorado Boulder Boulder CO USA

[2 ]Space Sciences Laboratory University of California Berkeley Berkeley CA USA

[3 ]Institute of Space Science and Applied Technology Harbin Institute of Technology (Shenzhen) Shenzhen China

[4 ]Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA

[5 ]Haystack Observatory Massachusetts Institute of Technology Westford MA USA

[6 ]MNR Key Laboratory of Polar Science Polar Research Institute of China Shanghai China

[7 ]High Altitude Observatory National Center for Atmospheric Research Boulder CO USA