2

Comment on “Legacy nitrogen may prevent achievement of water quality goals in the Gulf of Mexico”
Van Meter et al. (2018) warn that achieving nitrogen reduction goals in the Gulf of Mexico will take decades as a result of legacy …
Tristan Ballard, Anna Michalak, Gregory McIsaac, Nancy Rabalais, R. Eugene Turner
PDF Code
Long-term changes in precipitation and temperature have already impacted nitrogen loading
Increases in nitrogen loading over the past several decades have led to widespread water quality impairments across the U.S. Elevated …
Tristan Ballard, Eva Sinha, Anna Michalak
PDF Code
Remote Linkages to Anomalous Winter Atmospheric Ridging Over the Northeastern Pacific
Severe drought in California between 2013 and 2016 has been linked to the multiyear persistence of anomalously high atmospheric …
Daniel Swain, Deepti Singh, Daniel Horton, Justin Mankin, Tristan Ballard, Noah Diffenbaugh
PDF
CMIP5 Model Simulations of Ethiopian Kiremt-Season Precipitation: Current Climate and Future Changes
Kiremt-season (June–September) precipitation provides a significant water supply for Ethiopia, particularly in the central and northern …
Laifang Li, Wenhong Li, Tristan Ballard, Ge Sun, Marc Jeuland
PDF
Hydroclimate Variability and Change in the Prairie Pothole Region, the Duck Factory of North America
The Prairie Pothole Region (PPR) of the northern Great Plains is a vital ecosystem responsible each year for producing 50%–80% of new …
Tristan Ballard, Richard Seager, Jason Smerdon, Benjamin Cook, Andrea Ray, Balaji Rajagopalan, Yochanan Kushnir, Jennifer Nakamura, Naomi Henderson
PDF