Data from: L-band InSAR SWE retrievals over Northern Colorado

During the NASA SnowEx Time Series campaigns, NASA UAVSAR was tasked to
acquire weekly to bi-weekly SAR imagery over the Never Summer Mountains
and Medicine Bow Mountains of northern Colorado, near Cameron Pass. In
2020, three InSAR pairs were collected spanning 12 February to 12 March,
coinciding with 117 mm of snow water equivalent (SWE) accumulation at the
Joe Wright SNOTEL station (ID = 551) or about 18% of peak SWE. In 2021,
eight InSAR pairs were collected from 15 January to 22 March, coinciding
with 282 mm of SWE accumulation at the SNOTEL station or about 48% of peak
SWE. The UAVSAR flightline was ~40 km long with a swath width of 16 km.
The primary flight heading was southeast (141°), with a secondary
northwest heading (321°) flown when time allowed. To produce this dataset,
we used the 141° heading for all InSAR pairs except the 27 January to 3
February 2021 interval, which used the 321° heading. Associated NASA
UAVSAR interferograms are archived with the Alaska Satellite Facility
(Flight ID = Rocky Mountains NP, Colorado). This data set contains derived
changes in SWE (ΔSWE), calculated using methods following Guneriussen et
al. (2001), from the associated UAVSAR flights.