Výsledky vyhledávání - "Edward Ayres"

Akademický článek

Validation of Remotely Sensed and Modeled Soil Moisture at Forested and Unforested NEON Sites

Autor: Edward Ayres, Rolf H. Reichle, Andreas Colliander, Michael H. Cosh, Lucas Smith

Publikováno v: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 14248-14264 (2024)

Soil moisture (SM) is an important driver for forest ecosystems, creating a need for globally extensive SM information that can only be achieved with satellite-based sensors and/or process-based model. However, the reliability of remotely sensed or m

Externí odkaz: https://doaj.org/article/ada3d2e8e6c04940901d3237a6fc8f1c

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Akademický článek

Validation of SMAP Soil Moisture at Terrestrial National Ecological Observatory Network (NEON) Sites Show Potential for Soil Moisture Retrieval in Forested Areas

Autor: Edward Ayres, Andreas Colliander, Michael H. Cosh, Joshua A. Roberti, Sam Simkin, Melissa A. Genazzio

Publikováno v: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 10903-10918 (2021)

Soil moisture influences forest health, fire occurrence and extent, and insect and pathogen impacts, creating a need for regular, globally extensive soil moisture measurements that can only be achieved by satellite-based sensors, such as NASA's soil

Externí odkaz: https://doaj.org/article/d0a265d90abf41c6969ef28713d8cdc8

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Akademický článek

A Robust Calibration Method for Continental-Scale Soil Water Content Measurements

Autor: Joshua A. Roberti, Edward Ayres, Henry W. Loescher, Jianwu Tang, Gregory Starr, David J. Durden, Derek E. Smith, Elizabeth de la Reguera, Kate Morkeski, Margot McKlveen, Heidi Benstead, Michael D. SanClements, Robert H. Lee, Maheteme Gebremedhin, Rommel C. Zulueta

Publikováno v: Vadose Zone Journal, Vol 17, Iss 1 (2018)

Technological advances have allowed in situ monitoring of soil water content in an automated manner. These advances, along with an increase in large-scale networks monitoring soil water content, stress the need for a robust calibration framework that

Externí odkaz: https://doaj.org/article/f693179fd5794bbca4a3660266e0b7a8

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Akademický článek

Spatial variation in soil properties among North American ecosystems and guidelines for sampling designs.

Autor: Henry Loescher, Edward Ayres, Paul Duffy, Hongyan Luo, Max Brunke

Publikováno v: PLoS ONE, Vol 9, Iss 1, p e83216 (2014)

Soils are highly variable at many spatial scales, which makes designing studies to accurately estimate the mean value of soil properties across space challenging. The spatial correlation structure is critical to develop robust sampling strategies (e.

Externí odkaz: https://doaj.org/article/eadc9ff8e63943149ad2933e61187f0e

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Akademický článek

Traceable calibration, performance metrics, and uncertainty estimates of minirhizotron digital imagery for fine-root measurements.

Autor: Joshua A Roberti, Michael D SanClements, Henry W Loescher, Edward Ayres

Publikováno v: PLoS ONE, Vol 9, Iss 11, p e112362 (2014)

Even though fine-root turnover is a highly studied topic, it is often poorly understood as a result of uncertainties inherent in its sampling, e.g., quantifying spatial and temporal variability. While many methods exist to quantify fine-root turnover

Externí odkaz: https://doaj.org/article/b5b51bbff0744351aba349fabc2c4618

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Akademický článek

Tree species traits influence soil physical, chemical, and biological properties in high elevation forests.

Autor: Edward Ayres, Heidi Steltzer, Sarah Berg, Matthew D Wallenstein, Breana L Simmons, Diana H Wall

Publikováno v: PLoS ONE, Vol 4, Iss 6, p e5964 (2009)

BACKGROUND: Previous studies have shown that plants often have species-specific effects on soil properties. In high elevation forests in the Southern Rocky Mountains, North America, areas that are dominated by a single tree species are often adjacent

Externí odkaz: https://doaj.org/article/921869cafab94ca78a08aeaafd7df4a3

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