The integrated measures from large -
scale ocean salinity measurements are quite good, but it is difficult to work out exactly where that freshwater has come from.
Not exact matches
Changes in
ocean salinity, nutrient runoff and other pollution can cause small -
scale bleaching, but scientists say the widespread global bleaching this year is a symptom of unusual
ocean warming.
«Larvae often accumulate in small -
scale features such as
ocean fronts, where temperature and
salinity vary at small distances.
Ocean salinity changes, while unimportant for sea level at the global
scale, can have an effect on regional sea level (e.g., Antonov et al., 2002; Ishii et al., 2006; Section 5.5.3).
There is so little understanding about how the
ocean parses its response to forcings by 1) suppressing (local convective
scale) deep water formation where excessive warming patterns are changed, 2) enhancing (local convective
scale) deep water formation where the changed excessive warming patterns are co-located with increased evaporation and increased
salinity, and 3) shifting favored deep water formation locations as a result of a) shifted patterns of enhanced warming, b) shifted patterns of enhanced
salinity and c) shifted patterns of circulation which transport these enhanced
ocean features to critically altered destinations.
The principal scientific objective is to make global SSS measurements over the ice - free
oceans with 150 - km spatial resolution, and to achieve a measurement error less than 0.2 (PSS - 78 [practical
salinity scale of 1978]-RRB- on a 30 - day time
scale, taking into account all sensors and geophysical random errors and biases.
Salinity is indeed a key indicator of the strength of the hydrologic cycle because it tracks the differences created by varying evaporation and precipitation, runoff, and ice processes.
The observed changes in
salinity are of global
scale, with similar patterns in different
ocean basins (Figure 5.6).
The study by Ponte (2012) is referenced for its use of an eddy - resolving
ocean state estimate to quantify the substantial variability in temperature and
salinity expected in the deep
ocean on time
scales from months to years.
Anthropogenic influences have contributed to observed increases in atmospheric moisture content in the atmosphere (medium confidence), to global -
scale changes in precipitation patterns over land (medium confidence), to intensification of heavy precipitation over land regions where data are sufficient (medium confidence), and to changes in surface and subsurface
ocean salinity (very likely).
In this paper, it is shown that coherent large -
scale low - frequency variabilities in the North Atlantic
Ocean — that is, the variations of thermohaline circulation, deep western boundary current, northern recirculation gyre, and Gulf Stream path — are associated with high - latitude oceanic Great
Salinity Anomaly events.
The results shown here document that
ocean salinity and hence freshwater are changing on gyre and basin
scales, with the near - surface waters in the more evaporative regions increasing in
salinity in almost all
ocean basins.