| | 1. | Response of Upper Ocean during passage ofMALAcyclone utilizing ARGO data
Original Research Article
International Journal of Applied Earth Observation and Geoinformation, Volume 14, Issue 1, February 2012, Pages 149-159
Naresh Krishna Vissa, A.N.V. Satyanarayana, B. Prasad Kumar
Highlights► Maximum precipitation accumulated in the left side of the MALA cyclone. ► Turbulent, diapycnal mixing play role in sea-surface cooling and deepening of MLD. ► High enthalpy occur on the right side of the track of MALA cyclone.
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| | 3. | How plastic mulches affect the thermal and radiative microclimate in an unheated low-cost greenhouse
Original Research Article
Agricultural and Forest Meteorology, Volume 152, 15 January 2012, Pages 65-72
S. Bonachela, M.R. Granados, J.C. López, J. Hernández, J.J. Magán, E.J. Baeza, A. Baille
Highlights► Unheated greenhouses in mild winter areas suffer winter microclimate limitations. ► Three soil surface treatments: non-mulched (NM), transparent (TM) and black (BM) mulch. ► Soil heat flux, ground net radiation and air and soil temperatures were highest in BM. ► Greenhouse ventilation reduced negatively the benefits of plastic mulching. ► BM+greenhouse was a simple and low-cost passive heating system in winter.
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| | 4. | Eddy covariance measurements of CO2isotopologues with a quantum cascade laser absorption spectrometer
Original Research Article
Agricultural and Forest Meteorology, Volume 152, 15 January 2012, Pages 73-82
Patrick Sturm, Werner Eugster, Alexander Knohl
Highlights► Eddy covariance flux measurements of stable CO2isotopologues over a forest canopy. ►18O discrimination is reduced after rain events reflecting18O exchange with water. ► The low signal-to-noise ratio makes EC isotopologue flux measurements challenging. ► Inherent noise from EC method rather than the instrument precision is the limiting factor.
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| | 5. | Modeling energy and carbon fluxes in a heterogeneous oak woodland: A three-dimensional approach
Original Research Article
Agricultural and Forest Meteorology, Volume 152, 15 January 2012, Pages 83-100
Hideki Kobayashi, Dennis D. Baldocchi, Youngryel Ryu, Qi Chen, Siyan Ma, Jessica L. Osuna, Susan L. Ustin
Graphical abstract
Highlights► We coupled a 3D radiation transfer model with an energy exchange model. ► The comparisons were conducted using intensive field and remote sensing data. ► The developed 3D model performed better than the1D model in oak woodland. ► The importance of 3D approach depends on climate and physiological conditions. ► The results show the importance of including woody elements when LAI is low.
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| | 6. | Charcoal and stable soil organic matter as indicators of fire frequency, climate and past vegetation in volcanic soils of Mt. Etna, Sicily
Original Research Article
CATENA, Volume 88, Issue 1, January 2012, Pages 14-26
Markus Egli, Giovanni Mastrolonardo, Ruedi Seiler, Salvatore Raimondi, Filippo Favilli, Vincenzo Crimi, Rolf Krebs, Paolo Cherubini, Giacomo Certini
Highlights► Natural and human-induced fires have affected the landscape evolution of the Mt. Etna. ► Macro-charcoal in soils revealed a high fire frequency at the lowest altitudes. ► C and N stocks are higher at low-elevated sites due to the accumulation labile SOM. ► The age of stable SOM strongly increased with the altitude. ► Fire frequency is a powerful rejuvenating factor for SOM.
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| | 7. | Characteristics of dust deposited along a transect between central Iran and the Zagros Mountains
Original Research Article
CATENA, Volume 88, Issue 1, January 2012, Pages 27-36
Saeid Hojati, Hossein Khademi, Angel Faz Cano, Ahmad Landi
Highlights► Local soils greatly contribute to atmospheric dust when no dust storm occurs. ► If no dust storm from outside Iran enters the study area, dust deposition rate decreases with elevation. ► Transboundary dust storms would greatly modify the dust deposition rate and characteristics in the Zagros Mountains. ► Palygorskite, gypsum, and soluble salts could be used to trace the dust originated from arid environments. ► Transboundary dust storms originating from Iraq seem to create environmental issues in the Zagros region.
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| | 9. | Equatorial glaciations on Mars revealed by gravitational collapse of Valles Marineris wallslopes
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 182-191
Daniel Mège, Olivier Bourgeois
Highlights► Topographic ridges in Valles Marineris on Mars show sackung deformation. ► Sackung is likely to result from valley deglaciation in the main chasmata. ► This is consistent with observation of glacial landforms. ► Glacier thickness is typically in the range 100m–1km. ► The results constrain global climate models of Mars.
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| | 10. | Holocene tropical South American hydroclimate revealed from a decadally resolved lake sediment δ18O record
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 192-202
Broxton W. Bird, Mark B. Abbott, Donald T. Rodbell, Mathias Vuille
Highlights► Lake calcite oxygen isotopes detail Holocene tropical South American precipitation. ► Pumacocha is significantly correlated with the independently dated Huascaran record. ► Precipitation variability is complex, but consistent across tropical South America. ► Increasing Southern Hemisphere insolation forced increasing Holocene precipitation. ► ENSO, ITCZ, and sea ice feedbacks likely contributed to precipitation variability.
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| | 11. | The climate change caused by the land plant invasion in the Devonian
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 203-212
Guillaume Le Hir, Yannick Donnadieu, Yves Goddéris, Brigitte Meyer-Berthaud, Gilles Ramstein, Ronald C. Blakey
Highlights►We investigated the land plant invasion using a carbon–climate–vegetation model. ►By decreasing continental albedo, land plants warm the continental surfaces. ►This warming promotes the CO2consumption by silicate rock weathering. ►The CO2drawdown is paradoxically associated with unchanged temperatures. ►The CO2drop is counteracted by a large warming resulting from the albedo reduction.
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| | 12. | Constraining methane release due to serpentinization by the observed D/H ratio on Mars
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 262-271
Eric Chassefière, François Leblanc
Highlights► The CH4 release rate due to serpentinization is constrained from Mars' D/H ratio. ► Up to 40% of the present CH4 release may be due to serpentinization. ► A 400 m thick H2O GEL may have been sequestered in serpentine since late Noachian. ► Serpentinization appears as a potentially strong sink of water on Mars.
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| | 13. | Environmental effects of Deccan volcanism across the Cretaceous–Tertiary transition in Meghalaya, India
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 272-285
B. Gertsch, G. Keller, T. Adatte, R. Garg, V. Prasad, Z. Berner, D. Fleitmann
Highlights► Um Sohryngkew section of Meghalaya has the most complete KTB transition in India. ► Ir and other PGEs and TEs in KTB clay reveal impact source plus redox conditions. ► Humid conditions contrast with aridity induced by Deccan volcanism in central India. ► Super-stressed environment prior to KTB correlates with main Deccan pulse in C29r.
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| | 14. | Pacific/North American teleconnection controls on precipitation isotope ratios across the contiguous United States
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 319-326
Zhongfang Liu, Casey D. Kennedy, Gabriel J. Bowen
Highlights► Precipitation δ18O values correlate with the PNA pattern across the contiguous USA. ► δ18O/PNA correlation is of opposite sign in the eastern and western USA. ► A δ18O difference index isolates PNA from variation in other climate modes. ► Paleo-isotope data could reveal past changes in atmospheric circulation modes.
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| | 15. | Geological evidence for a migrating Tharsis plume on early Mars
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 327-333
Brian M. Hynek, Stuart J. Robbins, Ondřej Šrámek, Shijie J. Zhong
Highlights► Modeling suggests a plume migrated from the southern highlands to the Tharsis bulge. ► We completed mapping and crater and magnetic analyses to detail the migration. ► Results show that the mantle plume originated near the south pole of Mars. ► The expression of plume migration is similar to that of the Yellowstone Hotspot.
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| | 16. | Southern ocean nitrogen and silicon dynamics during the last deglaciation
Earth and Planetary Science Letters, Volume 310, Issues 3-4, 15 October 2011, Pages 334-339
Matthew G. Horn, Charlotte P. Beucher, Rebecca S. Robinson, Mark A. Brzezinski
Highlights► We compare the histories of N and Si utilization across the deglaciation. ► Si utilization is used to quantify Si supply to the surface via upwelling. ► Peaks in opal accumulation occur during episodes of increased upwelling. ► Long-term changes in N & Si consumption are attributed to changes in Fe availability. ► Increased nutrient supply contributed to the deglacial increase in atmospheric CO2.
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| | 17. | Vertical and horizontal concentration distributions of ultrafine particles near a highway
Original Research Article
Atmospheric Environment, Available online 6 October 2011
Meilu He, Suresh Dhaniyala
Highlights► Particle concentration and wind relationships are different at different sites. ► Obtained real-time particle distribution in vertical direction. ► Obtained particle vertical distribution at different wind conditions. ► Detected particles from traffic emission at upwind sites very close to a highway. ► Studied plume development from traffic emission in vertical direction.
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| | 18. | Gas phase reaction of OH radicals with (E)-β-farnesene at 296 ± 2 K: Rate coefficient and carbonyl products
Original Research Article
Atmospheric Environment, Available online 6 October 2011
Ivan Kourtchev, Iustinian Bejan, John R. Sodeau, John C. Wenger
Highlights► Kinetics of the reactions of (E)-β-farnesene with OH radicals has been measured. ► A number of carbonyl compounds have been determined as reaction products. ► A reaction mechanism has been proposed to explain the majority of the products. ► The atmospheric implications of the results are considered.
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| | 20. | Ozone variability in the atmospheric boundary layer in Maryland and its implications for vertical transport model
Original Research Article
Atmospheric Environment, Available online 6 October 2011
Xiao-Ming Hu, David C. Doughty, Kevin J. Sanchez, Everette Joseph, Jose D. Fuentes
Highlights► At times, the residual layer became leaky and permitted vertical transport to enhance surface O3. ► Ozone in the residual layer is highly variable. ► The current implementation of the ACM2 PBL scheme in WRF/Chem does not properly simulate the mixing of pollutants. ► Increasing the asymptotic length and using “long-tails” stability function improved the nighttime simulation.
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| | 23. | Global hot-spots of heat stress on agricultural crops due to climate change
Original Research Article
Agricultural and Forest Meteorology, Available online 5 October 2011
Edmar I. Teixeira, Guenther Fischer, Harrij van Velthuizen, Christof Walter, Frank Ewert
Highlights► A global spatial assessment of crop heat-stress for wheat, maize, rice and soybean. ► Hot-spots of heat-stress were found mostly in continental lands at high latitude. ► Risk of crop damage mostly increased for future climate change scenario. ► Adaptation of agricultural technologies is necessary to reduce risk of heat-stress.
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| | 25. | Nineteenth and twentieth century sea-level changes in Tasmania and New Zealand
Earth and Planetary Science Letters, Available online 5 October 2011
W. Roland Gehrels, S. Louise Callard, Patrick T. Moss, William A. Marshall, Maarten Blaauw, John Hunter, J. Andrew Milton, Mark H. Garnett
Highlights► Salt marshes in Tasmania and New Zealand record rapid recent sea-level rise. ► Throughout the last 6000yr sea levels were relatively stable. ► Sea level started rising substantially between 1880 and 1900. ► The rate of sea-level rise in Tasmania between 1900 and 1950 was 4.2±0.1mm/yr. ► Early 20th century sea-level rise may be attributed to Northern Hemisphere ice melt.
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