NOAA ESRL Physical Science Division Arc7c Cruises and Science
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1 NOAA ESRL Physical Science Division Arc7c Cruises and Science Presented by Taneil U?al On Behalf of Ma?hew Shupe, Ola Persson, Byron Blomquist, Chris Fairall and Janet Intrieri Cloud and Radia7on Feedbacks Sea Surface State Arc7c (Ocean) System Science
2 Legs 1 (cyan) and 2 (white); AMSRE Ice Concentrations YD210, July 29 Objective: Improve understanding of clouds, boundarylayer structure, and air-ice/air-ocean interactions in the marginal ice zone. Responsible ACSE Scientists: - Prof. Michael Tjernström, Univ. of Stockholm, Sweden (lead atmospheric scientist) - Prof. Ian Brooks, Univ. of Leeds, UK - Dr. Barbara Brooks, National Centre for Atmos. Sci., UK - Dr. Ola Persson, Univ. of Colorado/NOAA, USA - Dr. Matthew Shupe, Univ. of Colorado/NOAA, USA Onboard ACSE support staff : Dr. John Prytherch (ULeeds); Dr. Dominic Salisbury (ULeeds); Paul Johnston (UColorado/NOAA); Daniel Wolfe (UColorado/ NOAA); Georgia Sotiropoulou (UStockholm) SWERUS Chief Scientists: Örjan Gustafsson (UStockholm); Martin Jakobsson (UStockholm); Igor Semiletov (Pacific Ocean Inst., Russia); Andrey Koshurnikov (Moscow State Univ, Russia) Arctic Clouds in Summer Experiment (ACSE)/SWERUS (slides prepared by O. Persson, Oct 23, 2014) Atmospheric component of Swedish-Russian-U.S. Arctic Ocean Investigation of Climate-Cryosphere Carbon Interactions (SWERUS-C3) Swedish icebreaker R/V Oden (length 108 m) July 5 - Oct 4, 2014 (Year Day ) Leg 1: Tromsø, NO Barrow, AK (YD ) Leg 2: Barrow Tromsø (YD ) Barents/Kara, Laptev, E. Siberian, Chukchi Seas (latitude N) conditions: in open water (36%); marginal ice zone (MIZ, 22%); sea ice (42%); melting MYI; MIZ freeze-up collaboration with Japanese R/V Mirai (location Sep 5-25 green x) 2014 Legs 1 (cyan) and 2 (white); AMSRE Ice Concentrations YD256, Sep 13 Also R/V Mirai tes7ng COARE algorimns (Coupled Ocean- Atmosphere Response Experiment )
3 Sea State Field Program Office of Naval Research Sep Nov. 10, 2015 Beaufort/Chukchi Sea ice edge 2015 R/V Sikuliaq New National Science Foundation icebreaker Objective: Improve understanding of wave impact on sea ice Method: Multiple atmosphere, ice, and ocean observing platforms near ice edge
4 MOSAiC Multidisciplinary drifting Observatory for the Study of Arctic Climate M. Shupe, K. Dethloff, M. Tjernstrom et al. Interdisciplinary process study in central Arc5c 1 st - year sea ice: 1) Central observatory: atmosphere- ice- ocean- BGC 2) Distributed observa5on network; Grid- box scale 3) Coordina5on, mul5- scale modeling ac5vi5es; YOPP , annual cycle Central Arc5c Basin ice pack Coupled, Sea Ice System Science Themes Sea- ice Energy Budget Ice Mo5on / Deforma5on Clouds / Precip / Aerosols BioGeoChem Processes Large- scale implica5ons
5 Extra Slides
6 Understanding the sources and impacts of Arctic aerosols on sea ice Potential aerosol sources and impacts on surface radiation budget Black carbon aerosols absorb shortwave radiation, leading to atmospheric heating Organic aerosols, such as those from local and transported pollution, can form small and numerous liquid cloud drops, increasing cloud lifetime and thickness Mineral dust from distant sources can form cloud ice crystals, altering the cloud radiative properties Biological aerosols from terrestrial and marine sources also form cloud ice crystals Sea salt emitting from the Arctic Ocean scatter shortwave radiation These aerosol types can directly or indirectly lead to surface heating and/or cooling, and consequently impact sea ice extent Thus, a better understanding of Arctic aerosols is needed
7 The Ocean-Ice- Atmosphere as a System
8 Atmosphere-Sea Ice Ocean System: Atmospheric Rivers Sea State Figure by MaVhew Shupe
9
10 Instrumentation for ACSE/SWERUS Instrument Organization Measurement W-band radar CIRES/NOAA Cloud properties 449 MHz wind profiler CIRES/NOAA hourly profiles of wind speed,/direction Sea snake CIRES/NOAA sea-surface temperature 35-channel Radiometrics radiometer CIRES/NOAA PWV, LWP, profiles of T, q Ceilometer CIRES/NOAA, MISU, Ship cloud base Reigl laser wave-height recorder NOAA/Leeds wave-height Flux tower with trims, motion sensor Leeds, MISU turbulent fluxes (H s, H l, τ, CO 2 ) CLASP Leeds aerosol size distribution Stabilized, scanning Doppler Lidar Leeds winds (spatial, profiles), cloud phase, turbulence HATPRO, scanning,12 ch radiometer Leeds PWV, LWP, profiles of T, q Rawinsondes - 4x daily MISU, Leeds profiles of T, RH, p & winds IRT, up & down MISU surface and sky temperature Broadband radiation MISU radiative fluxes Weather station MISU basic weather parameters, visibility Webcams (3) Leeds local ice fraction, sea state Waverider wave buoy Leeds directional wave-height spectra Satellite (MODIS, SAR) NOAA, NASA, U Victoria, Bedford Inst. Ocean. large-scale weather, ice concentrations (Ship data Polar basic met, near-surface water T, and salinity) (CTD/XBT casts GU, SU/ Phys. Ocean. ocean temperature/salinity profiles) Scanning lidar Broadband radiometers ceilometer shortwave longwave 2D sonic anemometer LICOR fast hygrometer/co 2 meter GPS 3D Metek sonic anemometer T/RH sensor T/RH sensor webcams
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