K C McDonald

Dados Biográficos

ID7994499
NOMEK C McDonald
PRENOMESK C
SOBRENOMEMcDonald
ASSINATURAMCDONALD K C
AFILIAÇÕESJet Propulsion Laboratory
ORCID0000-0001-8911-6576
VERIFICADOSim
TOTAL DE OBRAS8
TOTAL DE CITAÇÕES0
TOTAL COMO AUTOR8
TOTAL COMO EDITOR0
PRIMEIRO ANO DE PUBLICAÇÃO1995
ANO MAIS RECENTE DE PUBLICAÇÃO2024
ÍNDICE H0

  • Critical needs to close monitoring gaps in pan-tropical wetland CH 4 emissions

    Open AccessQing Zhu, Kunxiaojia Yuan et al.ARTICLEEnvironmental Research Letters2024

    Global wetlands are the largest and most uncertain natural source of atmospheric methane (CH 4 ). The FLUXNET-CH 4 synthesis initiative has established a global network of flux tower infrastructure, offering valuable data products and fostering a dedicated community for the measurement and analysis of methane flux data. Existing studies using the FLUXNET-CH 4 Community Product v1.0 have provided invaluable insights into the drivers of ecosystem-t…

  • Global wetland contribution to 2000–2012 atmospheric methane growth rate dynamics

    Open AccessBenjamin Poulter, Philippe Bousquet et al.ARTICLEEnvironmental Research Letters2017

    Increasing atmospheric methane (CH 4 ) concentrations have contributed to approximately 20% of anthropogenic climate change. Despite the importance of CH 4 as a greenhouse gas, its atmospheric growth rate and dynamics over the past two decades, which include a stabilization period (1999–2006), followed by renewed growth starting in 2007, remain poorly understood. We provide an updated estimate of CH 4 emissions from wetlands, the largest natural …

  • Surface water inundation in the boreal-Arctic

    Open AccessJennifer D Watts, John S Kimball et al.ARTICLEEnvironmental Research Letters2014

    Northern wetlands may be vulnerable to increased carbon losses from methane (CH4), a potent greenhouse gas, under current warming trends. However, the dynamic nature of open water inundation and wetting/drying patterns may constrain regional emissions, offsetting the potential magnitude of methane release. Here we conduct a satellite data driven model investigation of the combined effects of surface warming and moisture variability on high northe…

  • On the causes of the shrinking of Lake Chad

    Open AccessHuilin Gao, T J Bohn et al.ARTICLEEnvironmental Research Letters2011

    Over the last 40 years, Lake Chad, once the sixth largest lake in the world, has decreased by more than 90% in area. In this study, we use a hydrological model coupled with a lake/wetland algorithm to simulate the effects of lake bathymetry, human water use, and decadal climate variability on the lake's level, surface area, and water storage. In addition to the effects of persistent droughts and increasing irrigation withdrawals on the shrinking,…

  • Satellite microwave remote sensing of North Eurasian inundation dynamics

    Open AccessR Schroeder, M A Rawlins et al.ARTICLEEnvironmental Research Letters2010

    Wetlands are not only primary producers of atmospheric greenhouse gases but also possess unique features that are favourable for application of satellite microwave remote sensing to monitoring their status and trend. In this study we apply combined passive and active microwave remote sensing data sets from the NASA sensors AMSR-E and QuikSCAT to map surface water dynamics over Northern Eurasia. We demonstrate our method on the evolution of large …

  • Diagnosis of the record discharge of Arctic-draining Eurasian rivers in 2007

    Open AccessM A Rawlins, Mark C Serreze et al.ARTICLEEnvironmental Research Letters2009

    Aggregate annual discharge from the six largest Arctic-draining Eurasian rivers achieved an all-time record high in 2007, accentuating a long-term upward trend that argues for intensification of the Arctic hydrologic cycle. This record discharge was due in part to strong positive anomalies in late winter snow water equivalent across much of northern Eurasia. These anomalies arose in response to an unusual pattern of atmospheric circulation in lat…

  • Methane emissions from western Siberian wetlands

    Open AccessT J Bohn, Dennis P Lettenmaier et al.ARTICLEEnvironmental Research Letters2007

    The prediction of methane emissions from high-latitude wetlands is important given concerns about their sensitivity to a warming climate. As a basis for the prediction of wetland methane emissions at regional scales, we coupled the variable infiltration capacity macroscale hydrological model (VIC) with the biosphere–energy-transfer–hydrology terrestrial ecosystem model (BETHY) and a wetland methane emissions model to make large-scale estimates of…

  • Monitoring, classification, and characterization of interior Alaska forests using Airsar and ERS-1 SAR

    Open AccessC Williams, C L Williams et al.ARTICLEPolar Record1995Referências: 12

    At the Bonanza Creek Experimental Forest (BCEF), past ecological research has been directed at forest successional processes on the floodplain of the Tanana River and adjacent uplands. Research at the Bonanza Creek site continues on the mosaic of forests, shrublands, and wetlands in a wide variety of successional stages on the Tanana floodplain. This paper reviews research since 1988 into the capabilities of Synthetic Aperture Radar (SAR) for mon…