IASOA (International Arctic Systems for Observing

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1 IASOA (International Arctic Systems for Observing the Atmosphere) for YOPP The Atmosphere over: - permafrost -fast ice - glaciers - lakes -rivers - ice sheets - adjacent oceans Science Working Groups -Regional Processes - Radiation Fluxes - Greenhouse Gases - Aerosols (Black Carbon) -Surface Atmosphere Exchanges (Turbulent Fluxes) - Clouds

2 IASOA Data Portal Datasets Available Multiple Data Centers and Institutes contribute access to data through the IASOA Data Portal by using standardized metadata protocols

3 Scientific station Cape Baranova is potential new member of IASOA The location of the Cape Baranova Ice Station is one of the least investigated regions of the Arctic Ocean. With an extensive complex of atmospheric observations Cape Baranova Ice Station is a candidate for full partnership in the IASOA consortium.

4 The Cape Baranova Science Station in 15 Standard meteorological observations Radiation monitoring in framework of BSRN Route surface surveys of spectral albedo Upper-air observations Monitoring of greenhouse gases and aerosol pollution Heat balance observations Studies of physical - mechanical properties of fast ice Testing of new devices for measurements of freshwater and sea ice thickness Oceanographic investigations in the Shokalski Strait Organization of polygon for glaciological investigations at the glacier Mushketov Hydrological studies Глубина (м) Глубина (м) Время (мин) Время (мин) а. б Скорость (см/с) Направление ( )

5 IASOA for YOPP On going: Cross Observatory Coordination Initiate an IASOA Working Group on Regional Processes (underway). Regional Processes Working Group will lead on Preparatory & YOPP work Preparatory Phase: Setting Climatological Context & Diagnosing Forecast Errors Develop interoperable, error corrected climatology of long term meteorological observations and other key data (e.g. surface energy balance data products) Explore impact of Arctic observations on forecast models (e.g. Summit Station) and identify specific regimes for forecast improvements (e.g. strong surface inversions) and most sensitive locations. YOPP: Targeted Intensive Observations Design a coordinated experiment plan for enhanced observations across the IASOA network during YOPP (e.g. 4x's daily radiosondes)

6 Preparatory: Setting Climatological Context 75 -,6 -,6 -,4 -,4 -,2 -,2 8, 8,,2,2,4,4,6 C/год,6 C/год 73 Усть- Оленёк 14 ГМО Саскылах Тикси Тюмяти 8 Чокурдах Джалинда Кюсюр Юбилейное Андрюшкино 69 Сухана Джаржан 77 Депутатский Колымская Оленёк Черский 67 Ярольин Верхоянск Среднеколымская ,6 -,6 -,4 -,4 -,2 -,2 8, 8,,2,2,4,4 C/год Olenek Chersky 8 8 -,18 -,14 -,1 -,6 -,2,2,6,1,14 ºС/год -,18 -,14 -,1 -,6 -,2,2,6,1,14 ºС/год C/год,6,6 -,6 -,4 -,2 8,,2,4,6 C/год Chokurdah 8 8 -,18 -,14 -,1 -,6 -,2,2,6,1,14 ºС/год -,18 -,14 -,1 -,6 -,2,2,6,1,14 ºС/год Temperature trends (C/year) from uncorrected sounding data from IASOA and Roshydromet Stations (Uttal et al., 15 submitted, Makshtas et al, 14) shows height-resolved annual and seasonal temperature trends based on the period 19-13) IASOA s Regional Processes Working Group will focus on improving the homogeneity and interoperability of key datasets to understand the long-term climatological context of the YOPP.

7 Preparatory: Diagnosing Forecast Errors with IASOA Observations Example exploratory research on Summit radiosondes. Early results indicate that forecast models fail to reproduce coldest surface temperatures. NDJFM JJJA ECMWF 12Z Forecasts & Summit Radiosonde 2m Temperatures, (Martinez, Starkweather, Cox, Shupe, Solomon) AM SO ECMWF Radiosonde

8 Preparatory: Diagnosing Forecast Errors with Observations Overcast over Fast Ice Clear Model vs Observed Temp Model vs Observed Temp -1-1 Tp - Tp Ts(e=.1)-Tp, C Ts_e= Difference as a function of wind speed Te1-Tp Ts_e= Difference as a function of wind speed V, m/s Correlation between measured and calculated by model surface temperatures and dependence of differences on wind speed for overcast (left) and clear sky (right) conditions W

9 YOPP Intensive Observations at IASOA Observatories What are the key variables? What are the targeted regimes? What are the key locations?

10 IASOA Ideas/Needs for YOPP Observatory Forecast Center collaborations on statistics, model outputs & experiment designs Preparatory collaboration workshop between observatories and forecast centers to identify key observations and model products for preparatory & YOPP period Coordinated Data Management Support How will collaborative outputs from forecasts centers be accessed? What are the use constraints? Coordinated International Funding Support Investments in additional observations & experiments must be justified by preparatory research