Sentences with phrase «temperature of water samples»

Moreover, field studies have rarely reported the pH and temperature of water samples, which could have a big effect on true concentrations of contaminants.

Not exact matches

Kaustubh Thirumalai (Brown University) helping retrieve a CTD instrument, which collects water samples and measures physical parameters of oceanic waters such as temperature, aboard the R / V Point Sur in the northern Gulf of Mexico.

MELISA consists of a water bath heater that incubates samples at a target temperature and analyzes them via images taken by mobile phone.

Measuring - Temperature and Thermometers Classifying Components of Mixtures Predicting - Surveying Opinion SAPA Part C, Directions for the Multiplication Game SAPA Part C and E, Multiplication Game SAPA Part D 1st Draft, c. 1972 The Whirling Dervish The Bouncing Ball The Effect of Liquid on Living Tissue Rate of Change Observing Growth from Seeds An Intro to Scales Forces on Static and Moving Objects Observations and Inferences Using Punch Cards to Record a Classification Using Maps to Describe Location A Tree Diary SAPA Part D 2nd Draft Observations and Inferences The Bouncing Ball Rate of Change A Tree Diary An Intro to Scales and Scaling Observing Growth from Seeds (The Bean - It Came Up) Forces on Static and Moving Objects Using Punch Cards to Record a Classification Relative Position and Motion Inferring - The Water Cycle Predicting 4 - The Suffocating Candle The Big Cleanup Campaign 2 - D Representation of Spatial Figures Using Maps to Describe Location SAPA Part D Tryout Draft, 1972 Observations and Inferences The Bouncing Ball Measuring Drop by Drop Rate of Change Predicting 4 - The Suffocating Candle Forces on Static and Movign Objects Observing Growth from Seeds Using Space / Time Relationships -2-D Representation of Spatial Figures Using Punch Cards to Record a Classification An Introduction to Scales and Scaling The Effect of Liquid on Living Tissue Inferring - The Water Cycle Relative Position and Motion Using Maps to Describe Location The Big Cleanup Campaign A Tree Diary SAPA II Module (s), c. 1973 1, Tentative Format Sample, Perception of Color 9, Sets and Their Members 6, Direction and Movement, Draft 34, About How Far?

Some of the samples sat in freezers, others under the sink, and still others in water baths maintained at various temperatures.

For this particular research, the scientists tested samples of common salt — sodium chloride — along with mixtures of salt and water, in their vacuum chamber at Europa's chilly surface temperature of minus 280 degrees Fahrenheit (minus 173 Celsius).

«As the observed NMR signal is proportional to the amount of ortho - water in the sample (para-water «NMR silent»), we can track the percentages of ortho and para isomers at any time and any temperature,» Mamone explained.

Kelsey Poulson - Ellestad, a former graduate student at the Georgia Institute of Technology, now at Woods Hole Oceanographic Institution, works with a Conductivity, temperature and depth (CTD) sampling rosette, which is lowered over the side of a vessel and is used to collect water samples from various depths.

The ability to peek into the process of splitting water at room temperature has been hindered by the fact that most imaging or crystallography technology using X-ray lasers blasts the samples to bits before meaningful data can be collected.

We present such a relationship for aragonite saturation state for waters off Northern California based on in situ bottle sampling and instrumental measurements of temperature, salinity, and dissolved oxygen.

As the space filled to capacity and the temperature began to rise — with nary a beer, wine, or water in the offing — I roped artist Emily Harris into the compare - and - contrast exercise of sampling a couple of other local openings.

News that SST temperature readings are kaput because of differences in methods of drawing sea water samples are highly exaggerated, to paraphrase Mark Twain.

It is widely realized that WWii saw changes in the construction of sampling buckets for sea surface temperature measurement, and many navies switching to water intake temperatures in compiling data from ships at sea.

Clearly a lot of sampling skill is needed to discount trees that have taken root where subsoil variability comes into play, lest that inhomogeneity of nutrient and water availability blur or wash out the temperature component.

A couple of years ago I went out with my rowing boat (I live 100 yards from the sea) and took water samples in a container from various depths and measured the temperature after leaving the water in the bucket for various timings.

If scientists need to rely on bucket samples of water to prove the historic global temperature of our oceans, perhaps it is time to recognise that there are some aspects of our climate data that are not worth relying on.

One of my introductions to the strange world of climatism was a discussion at Climate Audit, where Steve McIntyre and his colleagues were trying to puzzle out the effect of a changeover in the early 20th century from leather to oaken buckets for gathering water samples for measuring ocean temperature.

The new ERSST4 temperature series includes an» (i) an increasing amount of ocean data from buoys, which are slightly different than data from ships; (ii) an increasing amount of ship data from engine intake thermometers, which are slightly different than data from bucket sea - water temperatures; and (iii) a large increase in land - station data...» and «More generally, buoy data have been proven to be more accurate and reliable than ship data, with better known instrument characteristics and automated sampling.»

If the bucket were dragged at sampling depth for a few minutes before extraction, the walls of the bucket would have come near the ambient water temperature, slowing heat loss from the captured water.

There is contamination of the air in the bubble by water; different results are obtained if the ice is crushed or melted to obtain the air sample; it takes decades for the air bubble to form; the raw data was smoothed out by a 70 year moving average that removed the great annual variability found in the 19th century and Stomata Index (SI) records; closer examination revealed a major flaw in the hypothesis because temperature rises before CO2.

Some billions of dollars later, your lab assistant tells you that the water sample you used was actually 33 K before you applied the energy that resulted in a final temperature of 288 K.

Similarly the criteria for water readings to be taken immediately recognises that a small sample of water left in the sun quickly escalates in temperature and that a thermometer kept on a hook in the sun takes time to reflect the ambient temperature of the water (of course some buckets eventually contained an integral thermometer)

Tung and co-author Xianyao Chen of the Ocean University of China, who was a UW visiting professor last year, used recent observations of deep - sea temperatures from Argo floats that sample the water down to 6,500 feet (2,000 meters) depth.

Well, I was one of the first persons in the blogosphere at the time to evaluate that, because I compared the dip in the temperature of sampled water with the dip in the temperature of near - surface air measured on ships, and observed that approximately half or so of the dip was explainable by instrumentation changes and the remainder by some other mechanism — probably a change in internal ocean dynamics (PDO, AMO, etc..)

Due to the high specific heat of water one needs to supply the water sample with more energy in order to rise the temperature by one degree than in the case of some other material with the same mass but the lower heat capacity.

Relative humidity reflects the ratio of the actual pressure of water vapor in a sample of air to the pressure necessary to saturate that air at a given temperature.

From the press release: «During field expeditions, the research team used a variety of techniques — including sonar and visual images of methane bubbles in the water, air and water sampling, seafloor drilling and temperature readings — to determine the conditions of the water and permafrost, as well as the amount of methane being released.»

How do we know the temperature change in the water column on any given month in any particular body of water unless systematic sampling is being done which really only occured in the last 5 years with submersible probes?

Just to state that I was on a member of a North sea survey crew back in the early 1980's when throwing a bucket over the side of the ship was the accepted method of obtaining water samples for temperature / salinity analysis.