This is the 8788th most frequent Russian word.
поземского
"Поземского" is not a standard Russian word; it likely represents a form of a surname or a possessive adjective related to "Поземский."
In this sentence, "поземский" is used as an adjective describing "ветер" (wind), referencing its nature as surface-related, likely moving close to the ground.
Каждую весну мы наблюдаем мощный поземский ветер.
Each spring, we observe a strong surface wind.
Here, "поземского" qualifies "снега" (snow), specifying that the snow is distributed or present close to the ground, indicating a phenomenon occurring near the surface.
На лесной тропе лежали следы поземского снега.
On the forest trail, there were traces of surface snow.
In this example, "поземской" describes "зиме" (winter), implying particular conditions associated with surface-level occurrences like winds or snow during the winter season.