A5016039364- Oceanographic and Atmospheric Processes
- Advanced Thermodynamics and Statistical Mechanics
- Arctic and Antarctic ice dynamics
- Marine and coastal ecosystems
- Phase Equilibria and Thermodynamics
- Climate variability and models
- Origins and Evolution of Life
- Spectroscopy and Quantum Chemical Studies
- Scientific Research and Discoveries
- Chemical and Physical Properties in Aqueous Solutions
- Ocean Acidification Effects and Responses
- Evolutionary Game Theory and Cooperation
- Atmospheric Ozone and Climate
- Thermodynamic properties of mixtures
- Meteorological Phenomena and Simulations
- Marine and environmental studies
- nanoparticles nucleation surface interactions
- Evolution and Genetic Dynamics
- Ocean Waves and Remote Sensing
- Marine Biology and Ecology Research
- Freezing and Crystallization Processes
- Speech and Audio Processing
- Methane Hydrates and Related Phenomena
- Complex Systems and Time Series Analysis
- Gene Regulatory Network Analysis
Leibniz Institute for Baltic Sea Research
2014-2024
Leibniz-Centre General Linguistics
2023-2024
HEAD Acoustics (Germany)
1996-2024
University of Perugia
2015
Leibniz Institute for East and Southeast European Studies
2011
University of Rostock
1975-2010
Intergovernmental Oceanographic Commission of UNESCO
2010
United Nations
2010
Humboldt-Universität zu Berlin
1981-2006
Internationale Akademie Berlin
1990
Various thermodynamic equilibrium properties of naturally abundant, hexagonal ice (ice Ih) water (H2O) have been used to develop a Gibbs energy function g(T,p) temperature and pressure, covering the ranges 0–273.16 K 0 Pa–210 MPa, expressed in scale ITS-90. It serves as fundamental equation from which additional are obtained partial derivatives by rules. Extending previously developed functions, it covers entire existence region Ih T-p diagram. Close zero temperature, obeys theoretical cubic...
An equation of state for seawater is presented that contains 25 terms and an excellent fit to the Feistel Hagen state. It written in potential temperature (rather than situ temperature), as required efficient ocean model integrations. The maximum density error 3 × 10–3 kg m–3 oceanographic ranges temperature, salinity, pressure. corresponding thermal expansion coefficient 4 10–7 °C–1, which a factor 12 less difference between widely used but accurate international A method convert using...
Abstract Algorithms are presented for density, potential temperature, conservative and the freezing temperature of seawater. The algorithms density (in terms temperature) updates to routines recently published by McDougall et al., while involving temperatures seawater new. al. were based on thermodynamic Feistel Hagen; in this study all “new extended Gibbs seawater” Feistel. algorithm computation salinity, pressure, produces errors corresponding thermal expansion coefficient same order as...
New reference equations, adopted by the International Association for Properties of Water and Steam (IAPWS), are presented sublimation pressure melting ice Ih as a function temperature. These equations based on input values derived from phase-equilibrium condition between IAPWS-95 scientific standard thermodynamic properties fluid H2O equation state IAPWS in 2006, making them thermodynamically consistent with bulk-phase properties. Compared to previous formulations, which were empirical fits...
Abstract. The brackish water of the Baltic Sea is a mixture ocean from Atlantic/North with fresh various rivers draining large area lowlands and mountain ranges. evaporation-precipitation balance results in an additional but minor excess water. carry different loads salts washed out ground, particular calcium carbonate, which cause composition anomaly salt dissolved comparison to Standard Seawater. Directly measured seawater density shows related when compared computed equation state as...
At an energy flux imbalance of about 1 W m–2, the ocean is storing 90 % heat accumulating by global warming. However, neither causes nor responsible geophysical processes are sufficiently well understood. More detailed investigations different phenomena contributing to oceanic balance warranted. Here, role low-level marine clouds in air-sea interaction analysed. TEOS-10, International Thermodynamic Equation State Seawater – 2010, exploited for a rigorous thermodynamic description climatic...
Abstract. Salinity plays a key role in the determination of thermodynamic properties seawater and new TEOS-101 standard provides consistent effective approach to dealing with relationships between salinity these properties. However, there are number practical issues that arise application TEOS-10, both terms accuracy scope, including its use reduction field data numerical models. First, TEOS-10 formulation for IAPSO Standard Seawater, Gibbs function takes Reference as argument, denoted SR,...
Abstract. In the terrestrial climate system, water is a key player in form of its different ambient phases ice, liquid and vapour, admixed with sea salt ocean dry air atmosphere. For proper balances climatic energy entropy fluxes models observations, highly accurate, consistent comprehensive thermodynamic standard framework requisite geophysics research. The new Thermodynamic Equation Seawater – 2010 (TEOS-10) constitutes such for properties various manifestations hydrological cycle. TEOS-10...
In the words of Heinrich Hertz in 1885, Earth is a “gigantic steam engine”. On average, planet’s cross section exposed to sunlight, 72 % belong global ocean. With delay only 2-3 months, most heat absorbed there released by evaporation rather than thermal radiation. Water vapour dominating “greenhouse gas” marine troposphere with typical relative humidity (RH) 80 at surface. Observing transport across ocean surface permits insight powerhouse “steam engine”, controlled RH surface, quantity...
Abstract. Measurements of (p, ρ, T) properties standard seawater with practical salinity S≈35, temperature T=(273.14 to 468.06) K and pressures, p, up 140 MPa are reported the reproducibility density measurements observed be in average percent deviation range Δρ/ρ=±(0.01 0.03)%. The made a newly constructed vibration-tube densimeter which is calibrated using double-distilled water, methanol aqueous NaCl solutions. Based on these previous measurements, an empirical expression for has been...