Mark L. Stone

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  • Richard Podpiera, Abdessatar Ouanes, +10 authors Jan Willem van der Vossen
  • 2004
This Working Paper should not be reported as representing the views of the IMF. The views expressed in this Working Paper are those of the author(s) and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the author(s) and are published to elicit comments and to further debate. We explore the(More)
The presence of nitrogen in soil and chlorophyll in plants are directly related; thus, chlorophyll may be used as an indirect indicator of nitrogen levels in fertilizer management systems. This research investigated a non‐destructive method of determining chlorophyll content and concentration in field‐grown spinach. Biomass was estimated with percent(More)
Information about the times of thermal breakthrough and subsequent rates of thermal drawdown in enhanced geothermal systems (EGS) is necessary for reservoir management, designing fracture stimulation and well drilling programs, and forecasting economic return. Thermal breakthrough in heterogeneous porous media can be estimated using conservative tracers and(More)
In corrosion assessment, ultrasonic wall-thickness measurements are often presented in the form of a color map. However, this gives little quantitative information on the distribution of the thickness measurements. The collected data can be used to form an empirical cumulative distribution function (ECDF), which provides information on the fraction of the(More)
As the Chinese economy becomes more market based and continues its rapid integration into the global economy, having an independent and effective monetary policy regime oriented to domestic objectives will become increasingly important. The Chinese authorities’ intention to facilitate this process by moving toward a more flexible exchange rate regime raises(More)
This Working Paper should not be reported as representing the views of the IMF. The views expressed in this Working Paper are those of the authors and do not necessarily represent those of the IMF or IMF policy. Working Papers describe research in progress by the authors and are published to elicit comments and to further debate. Policy-makers have(More)
  • Jacob Collison, Jacob W. Collison, Mark L. Stone, Dianna Crilley, John Stormont, JACOB W. COLLISON
  • 2016
Nighttime evapotranspiration (ETn) is typically underestimated, miscalculated or ignored when producing daily, seasonal, or annual evapotranspiration (ET) models using energybalance and aerodynamic conceptual models, such as the Penman-Monteith ET equation. The objective of this study is to increase the understanding of ETn contribution to daily ET (ET24)(More)
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