Sentences with phrase «spatial sampling in»

This form of representation ensures a reasonably homogeneous spatial sampling in the multiproxy network (112 indicators back to 1820).»

Not exact matches

«This provides us with a detailed insight into the molecular processes in the tissue samples, but without any connection to spatial information,» adds Dr. Jonathan Disselhorst, the first author.

This effect could allow the coupling of magnetic circuits across the sample thickness in multilevel devices with a higher degree of spatial integration than in current 2 - D magnetic circuits.

Sampling song from males at high and low elevations from two different mountains allowed us to (i) assess the presence of any differences in song structure at different elevations and (ii) consider the potential mechanism generating variation or song dialects on a small spatial scale.

A convenience sample of 54 patients with severe brain injury, including 23 in a vegetative state and 31 in a minimally conscious state, underwent functional MRI as a means of evaluating their performance on motor and spatial imagery tasks.

When compared to the total sample of LIRG CCSNe discovered in the near - IR and optical, we show that our method is singularly effective in uncovering CCSNe in nuclear regions and we conclude that the majority of CCSNe exploding in LIRGs are not detected as a result of dust obscuration and poor spatial resolution.

Our sample of 107 YSO candidates was selected based on IRAC colors from the high spatial resolution, high sensitivity Spitzer / IRAC images in the Central Molecular Zone (CMZ), which spans th... ▽ More We present results from our spectroscopic study, using the Infrared Spectrograph (IRS) onboard the Spitzer Space Telescope, designed to identify massive young stellar objects (YSOs) in the Galactic Center (GC).

A. Laureau, L. Buiron, B. Fontaine, Local correlated sampling Monte Carlo calculations in the TFM neutronics approach for spatial and point kinetics applications

Such samples, commonly referred to as FFPE, preserve the integrity of the tissue architecture of the original tumor, allowing the researchers to study the spatial differences in protein expression.

We studied the spatial distribution of Schistosoma mansoni and hookworm eggs in stool samples, the effect of homogenization, and determined egg counts over time in stool samples stored under different conditions.

Moreover, few of the sondes are in the inner tropics, spatial coverage is spotty, and there are questions of instrumental and diurnal sampling errors that may have complicated detection of the trend in the past decade.

«Certain densely sampled regional dendroclimatic data sets have been represented in the network by a smaller number of leading principal components (typically 3 — 11 depending on the spatial extent and size of the data set).

To have a simple average work, you need a relatively even spatial sampling, and relatively equal representation in each proxy for a particular area.

Gavin points out these sources of error: ``... imperfect data and has uncertainties due to spatial sampling, inhomogeneities of records (for multiple reasons), errors in transcription etc..»

They include lack of adequate spatial sampling to leave instrumental noise as the major term, transcription errors which may be avoided with modern automation and inhomogeneities which dedicated climatological networks in some parts of the world have made strides in overcoming.

It discusses the clay mineral composition of sediment samples taken from the seafloor surface and marine cores in order to decipher spatial and temporal changes in the sediment provenance.

Transcription comes in with the means of cooperation between national meteorological organizations and spatial sampling is uneven owing to differences in national capabilities.

An analysis using synthetic proxy data with spatial sampling density and proxy signal - to - noise ratios equivalent to those of the D'Arrigo et al (2006) tree - ring network suggest that these discrepancies can not be explained in terms of either the spatial sampling / extent or the intrinsic «noisiness» of the network of proxy records.

While these methods are heavily used, there are concerns regarding the distributions of available measurements, how well these sample the globe, and such issues as the degree to which the methods have spatial and seasonal biases or apparent divergence in the relationship with recent climate change.

Although teleconnections are best defined over a grid, simple indices based on a few key station locations remain attractive as the series can often be carried back in time long before complete gridded fields were available (see Section 3.6.4, Figure 3.31); the disadvantage is increased noise from the reduced spatial sampling.

However, spatial sampling is still an issue in the higher latitudes of the Southern Hemisphere, and ensuring the homogeneity of these data in the face of urbanization and changes incontinue

By investigating changes in the food web, particularly foraging and spatial patterns of seal populations, we can compare with historic samples and changes seen in the West Antarctic.

Both systematic and random errors are of concern, the former particularly, because of the changes in technology and sampling methods over the many decades, the latter from the very great spatial and temporal variability implied by Figs. 2, 6, and 8.

Both systematic and random errors are of concern, the former particularly, because of the changes in technology and sampling methods over the many decades, the latter from the very great spatial and temporal variability.

What is important in many climate change impacts contexts is appropriately sampling the full range of known uncertainties, regardless of spatial resolution.

And as for the spatial sampling which I tongue in cheek mentioned as the 1200 km sufficiency; that fails by orders of magnitude to satisfy the requirements.

«Uncertainty in any TOA radiative flux dataset results from a combination of factors including calibration, spectral sampling, angular sampling, spatial sampling, and temporal sampling, as well as algorithm changes.»

with respect to surface temperature samplings, shows a remarkable lack of understanding on their part on the actual spatial variability in surface temperatures, including their anomalies.

Here, we demonstrate that the changes in the spatial sampling of the historical observation network introduced an artificial jump during the initiation of the global Argo array (2001 — 2003).

Adequate spatial sampling then that is your choice but anyone can see pretty clearly that pre-1500 two regions would dominate the variability in the reconstruction.

If you wanted to estimate a wheat crop, in a field or a country, you would sample, with care about spatial.

Note spatial resolution here measures how closely you measure a given difference in trend, which is different than spatial sampling frequency, which tells you just how many points you've provided data for.

While satellite measurements do provide much better spatial and temporal sampling than can be obtained from the surface, their record is much shorter in length.

I agree there are other possibilities, but if we believe that adjustments are relatively unimportant (Nick's work seems pretty persuasive here as independent validation of BESTs work), to me the most plausible candidate is spatial sampling effects (note this is really tempo - spatial, since there could be differences in the amount of annual data used at the same site between the series).

As presented, the data has been processed and expressed in a user - friendly geo - spatial graphic showing the ice - out dates for a sampling of lakes of a given year.

As we have shown in Rahmstorf et al. (2012), much or most of the decadal variations in the rate of sea - level rise in tide gauge data are probably not real changes at all, but simply an artefact of inadequate spatial sampling of the tide gauges.

Sampling errors estimated from different reanalyses and from seasonal forecasts yield qualitatively comparable spatial patterns, in which the actual values of uncertainties are controlled by the magnitudes of synoptic variability.