[1] Given the importance of Upper Colorado River Basin (UCRB) snowpack as the primary driver of streamflow (water supply) for the southwestern United States, the identification of Pacific Ocean climatic drivers (e.g., sea surface temperature (SST) variability) may prove valuable in long‐lead‐time forecasting of snowpack in this critical region. Previous research efforts have identified El Niño–...

a total 7 species and 13 genera of marine gastropod assemblages are reported for the first time from the varehh zard section (asmari formation), north of pole dokhtar, lorestan basin. the section under study, the asmari formation, lies between the shahbazam formation at the base and gachsaran formation at the top. according to the distribution of index foraminifera, the asmari formation is earl...

The atmospheric energy transport variability associated with decadal sea surface temperature variability in the tropical Pacific is studied using an atmospheric primitive equation model coupled to a slab mixed layer. The decadal variability is prescribed as an anomalous surface heat flux that represents the reduced ocean heat transport in the tropical Pacific when it is anomalously warm. The at...

The Pacific and Indian Oceans are connected by an oceanic passage called the Indonesian Throughflow (ITF). In this setting, modes of climate variability over the two oceanic basins interact. El Niño–Southern Oscillation (ENSO) events generate sea surface temperature anomalies (SSTAs) over the Indian Ocean that, in turn, influence ENSO evolution. This raises the question as to whether Indo-Pacif...

Understanding the interaction of ocean eddies with tropical cyclones is critical for improving the understanding and prediction of the tropical cyclone intensity change. Here an investigation is presented of the interaction between Supertyphoon Maemi, the most intense tropical cyclone in 2003, and a warm ocean eddy in the western North Pacific. In September 2003, Maemi passed directly over a pr...

Results are first presented from an analysis of a global coupled climate model regarding changes in future mean and variability of south Asian monsoon precipitation due to increased atmospheric CO2 for doubled (2 · CO2) and quadrupled (4 · CO2) presentday amounts. Results from the coupled model show that, in agreement with previous studies, mean areaaveraged south Asian monsoon precipitation in...

A coupled model for the Pacific region has been used to study the response of the zonal SST contrast and the strength of Walker circulation to changes in the meridional differential heating over the Pacific ocean. Different from the previous studies that use an intermediate ocean model, the present model employs a primitive equation model for the Pacific ocean—the NCAR Pacific basin model— and ...

Scales (n = 552) of chum salmon (Oncorhynchus keta) collected in the North Pacific Ocean in May 1998 and 1999 and April 1999 were used to compare time of annulus formation between years, regions, and ages. May samples were collected from approximately the same location and time, during two years of very different ocean conditions, 1998 a strong EI Nino year and 1999 a strong La Nina year. Sea s...

The tropospheric biennial oscillation (TBO) is conventionally considered to involve transitions between the Indian and Australian summer monsoons and the interactions between these two monsoons and the underlying Indo-Pacific Oceans. Here it is shown that, since the early 1990s, the TBO has evolved to mainly involve the transitions between the western North Pacific (WNP) and Australian monsoons...

Decadal changes of abyssal temperature in the Pacific Ocean are analyzed using high-quality, full-depth hydrographic sections, each occupied at least twice between 1984 and 2006. The deep warming found over this time period agrees with previous analyses. The analysis presented here suggests it may have occurred after 1991, at least in the North Pacific. Mean temperature changes for the three zo...