U.S. Department of EnergyOffice of Scientific and Technical Information
Snow ALbedo eVOlution (SALVO) Campaign Broadband Albedo from April - June, 2024 in Utqiagivk, AK level a1
Abstract
A field-portable broadband (285 – 2800 nm) albedometer was used to make spatially distributed albedo measurements on tundra and sea ice surfaces. The albedometer consists of paired upward-looking and downward-looking pyranometers, which were both connected to a data logger. The instrument was mounted approximately 1 m above the surface using a tripod and was placed on a 1.4 m-long boom to minimize the impacts of shading from the operator and to observe surfaces undisturbed by footprints (see Appendix for photos of measurement setup and uncertainty assessment). Albedo measurements were taken parallel to the 200-m albedo lines at 5-m increments (41 measurements) ~1.2 m south of the line. On the operator’s end of the boom, there was a bubble level that was aligned with the bubble level on the upward-looking pyranometer. To take a measurement, the operator first relocated the tripod to the measurement location, then leveled the instrument and held it level for at least twice the pyranometers’ response time (5 or 15 seconds, see below), and finally depressed a trigger on the data logger. The data logger recorded the instantaneous voltage on both pyranometers, the measurement number, and the time. The data logger also converted the voltages to irradiances,more »
- Publication Date:
- Other Number(s):
- ARM0930
- DOE Contract Number:
- AC05-00OR22725
- Research Org.:
- Atmospheric Radiation Measurement (ARM) Archive, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US); ARM Data Center, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Collaborations:
- PNNL, BNL, ANL, ORNL
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Broadband shortwave albedo at surface; Shortwave total downward flux at surface; Shortwave total upward flux at surface; albedo; incident_solar_W_m2; reflected_solar_W_m2
- OSTI Identifier:
- 2558180
- DOI:
- https://doi.org/10.5439/2558180
Citation Formats
Clemens, David, Espinosa, Zac, Oggier, Marc, Sturm, Matthew, Webster, Melinda, Wesen, Serina, Wilson, Phillip, and Delamere, Jennifer. Snow ALbedo eVOlution (SALVO) Campaign Broadband Albedo from April - June, 2024 in Utqiagivk, AK level a1. United States: N. p., 2025.
Web. doi:10.5439/2558180.
Clemens, David, Espinosa, Zac, Oggier, Marc, Sturm, Matthew, Webster, Melinda, Wesen, Serina, Wilson, Phillip, & Delamere, Jennifer. Snow ALbedo eVOlution (SALVO) Campaign Broadband Albedo from April - June, 2024 in Utqiagivk, AK level a1. United States. doi:https://doi.org/10.5439/2558180
Clemens, David, Espinosa, Zac, Oggier, Marc, Sturm, Matthew, Webster, Melinda, Wesen, Serina, Wilson, Phillip, and Delamere, Jennifer. 2025.
"Snow ALbedo eVOlution (SALVO) Campaign Broadband Albedo from April - June, 2024 in Utqiagivk, AK level a1". United States. doi:https://doi.org/10.5439/2558180. https://www.osti.gov/servlets/purl/2558180. Pub date:Mon Apr 21 00:00:00 EDT 2025
@article{osti_2558180,
title = {Snow ALbedo eVOlution (SALVO) Campaign Broadband Albedo from April - June, 2024 in Utqiagivk, AK level a1},
author = {Clemens, David and Espinosa, Zac and Oggier, Marc and Sturm, Matthew and Webster, Melinda and Wesen, Serina and Wilson, Phillip and Delamere, Jennifer},
abstractNote = {A field-portable broadband (285 – 2800 nm) albedometer was used to make spatially distributed albedo measurements on tundra and sea ice surfaces. The albedometer consists of paired upward-looking and downward-looking pyranometers, which were both connected to a data logger. The instrument was mounted approximately 1 m above the surface using a tripod and was placed on a 1.4 m-long boom to minimize the impacts of shading from the operator and to observe surfaces undisturbed by footprints (see Appendix for photos of measurement setup and uncertainty assessment). Albedo measurements were taken parallel to the 200-m albedo lines at 5-m increments (41 measurements) ~1.2 m south of the line. On the operator’s end of the boom, there was a bubble level that was aligned with the bubble level on the upward-looking pyranometer. To take a measurement, the operator first relocated the tripod to the measurement location, then leveled the instrument and held it level for at least twice the pyranometers’ response time (5 or 15 seconds, see below), and finally depressed a trigger on the data logger. The data logger recorded the instantaneous voltage on both pyranometers, the measurement number, and the time. The data logger also converted the voltages to irradiances, and from these computed the ratio (outgoing/incoming) for albedo, which could be checked in the field. The operator recorded in a field notebook the measurement number that corresponded with the locations on the line and any pertinent notes (e.g., invalid measurements). With this setup, a trained operator could measure a 200-m albedo line (41 measurements) in approximately 30 minutes. Measurements were made within 3 hours of solar noon. The data logger had sufficient storage capacity to record all measurements from the campaign, but data were downloaded to a computer after each measurement day.},
doi = {10.5439/2558180},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 21 00:00:00 EDT 2025},
month = {Mon Apr 21 00:00:00 EDT 2025}
}