7,458 research outputs found
Improving the altimetric rain record from Jason-1 & Jason-2
No full textDual-frequency rain-flagging has long been a standard part of altimetric data analysis, both for quality control of the data and for the study of rain itself, because altimeters can provide a finer spatial sampling of rain than can passive microwave instruments. However, there have been many varied implementations, using different records of the surface backscatter and different thresholds. This paper compares four different measures available for the recently-launched Jason-2. The evaluation compares these measures against clearly desired properties, finding that in most cases the adjusted backscatter and that from the ice retracker perform much better than that recommended in the users' handbook. The adjusted backscatter measure also provides a much better link to observations from Jason-1, opening up a much longer period for consistent rain investigations, and enabling greatly improved analysis of the short-scale variability of precipitation. Initial analysis shows that although the spatial and temporal gradients of backscatter increase at very low winds, the spatial gradients in rain attenuation are concentrated where rainfall is greatest, whilst the temporal changes have a simple broad latitudinal pattern
Measuring and modeling hydrologic responses to timber harvest in a continental/maritime mountainous environment /by Jason A. Hubbert.
No full textThe inland Pacific Northwest of the United States is influenced by both maritime and continental climates. There are limited studies of hydrologic impacts resulting from contemporary timber harvest in this region. Streamflow data were collected since 1991 at the Mica Creek Experimental Watershed (MCEW) located in northern Idaho. Treatments isolated the effects of road construction and harvest practices. Water yield increased more than 270 and 140 mm/yr (p <0.01) following clearcut and 50% partial cut harvesting respectively. Evapotranspiration was reduced by 35% and 14% following clearcut and partial cut harvest, respectively, and monthly and seasonal analyses revealed the largest impacts of harvest practices on water yield during the snow deposition and melt season from November through June. Microclimate and snowpack dynamics were profoundly affected by canopy removal. Peak snow water equivalent (SWE) was approximately 57, 30, 17, and 34 cm in the clearcuts, partial cuts, undisturbed full and valley bottom forest, respectively. Daily melt was 1.1, 0.67, 0.94. and 0.50 cm/day in the clearcuts, partial cuts, undisturbed full and valley bottom forest, respectively. Estimates of snow interception losses were approximately 43, 60. and 32% of annual snow deposition in the partial cut, undisturbed full forest, and valley bottom sites respectively.;Driving the Water Erosion Prediction Project (WEPP) snowmelt processes with custom climates and adjusted canopy cover indices yielded the closest observed versus modeled relationships between snow accumulation, peak SWE, melt rate, and snow pack depletion date. Peak SWE and total days to depletion was underestimated by approximately 1, 34, and 40% and 11, 15, and 45 days in the clearcut, partial cut, and full forest respectively. Average snowmelt per day was overestimated for the clearcut and fully forested sites by approximately 29, and 68% respectively, but was equal to observed for the partial cut site. Observed vs. modeled SWE yielded Nash-Sutcliffe (NS) values that were 0.98, 0.67 for clearcut, partial cut, and fully forested sites respectively. This work improves current understanding of the relationships between canopy removal, water yield, and snowpack dynamics in the Inland Northwest, and exemplifies the need to better understand the relationships between canopy alteration, microclimate, and snow hydrology in complex forested mountainous ecosystems.Thesis (Ph. D., Natural Resources)--University of Idaho, July 16, 2007
Jason Bond Family History
No full textJason Bond authored this family history as part of the course requirements for HIST 550/700 Your Family in History offered online in Fall 2017 and was submitted to the Pittsburg State University Digital Commons. Please contact the author directly with any questions or comments: [email protected]
Meniscus
No full textJason Link is a Junior from Traverse City, MI. Me, I\u27m dishonest and a dishonest man you can always trust as being dishonest, honestly, it\u27s the honest ones you have to look out for because you never know when they\u27ll do something completely...stupid
Jason vs GIJOE
No full textThesis (Master's)--University of Washington, 2019Jason vs GI JOE is partly an exercise in autobiography, an experiment in relational aesthetics, and an interdisciplinary artist project at the intersection of comic books, creative writing and performance art. This comic book, Jason vs. GIJOE, is a postmodern double erasure, based on the comic book GIJOE: Cobra II (Issue 1). The original pictures from the comic book have been removed, and replaced by a series of short narratives, describing autobiographical events from the life of the author: me, Jason. Speech bubbles from the original have been left to comment back over top of the stories, obscuring meaning but creating moments of unplanned dialogue. The comic is a readymade, twice erased: once to replace the drawings of the initial comic, and again when using the original dialogue bubbles to speak back to the narrative
Oral history interview with Jason Poudrier
No full textJason Poudrier, author, discusses growing up in a military family and living in Alaska, North Dakota, Oregon, and finally Oklahoma. He describes what it was like enlisting in the Army after high school in 2001 and how his military service affected him. A recipient of the Purple Heart, he shares his experiences getting injured by shrapnel in Iraq. He later talks about how he uses poetry and writing to cope with his memories of war, and how he hopes to help others do the same.The Deep Roots: Oklahoma Authors Collection is a series of interviews with authors who discuss their lives, work, and creative processes
DokumentlieferService : DBI-Link, subito, Jason-www ; schnelle Lieferung von Zeitschriftenaufsätzen und Büchern
No full textHeinrich-Heine-Universität Düsseldorf ; Universitäts- und Landesbibliothek Düsseldorf. [Entwurf: Christof Neumann]Motiv: Logos DBI-Link, subito, Jason-ww
Lynn Brunelle and Jason Chin: Cook Prize 2025, Gold Medal Acceptance Speech
No full textAuthor Lynn Brunelle and illustrator Jason Chin give an acceptance speech for Life After Whale: The Amazing Ecosystem of a Whale Fall (Neal Porter Books/Holiday House)https://educate.bankstreet.edu/cook/1016/thumbnail.jp
The people behind the papers – Jason Ko and Daniel Lobo
No full textPlanarians grow when they are fed and shrink during periods of starvation. However, it is unclear how they maintain appropriate body proportions as their size changes. A new paper in Development investigates the differences between growth and shrinkage dynamics and builds a mathematical model to explore the mechanisms underpinning these two processes. To learn more about the story behind the paper, we caught up with first author, Jason Ko, and corresponding author, Daniel Lobo, Associate Professor at the University of Maryland.https://doi.org/10.1242/dev.20298
Ep. #085 - Jason W. Moore
No full textThis recording and transcript form part of a collection of podcasts conducted by the Cultures of Energy at Rice University. Cultures of Energy brings writers, artists and scholars together to talk, think and feel their way into the Anthropocene. We cover serious issues like climate change, species extinction and energy transition. But we also try to confront seemingly huge and insurmountable problems with insight, creativity and laughter.Cymene and Dominic talk capital and Vanilla Isis and then (11:21) we welcome to the podcast the one and only Jason W. Moore from Binghamton University, author of Capitalism in the Web of Life (Verso, 2015) and Anthropocene or Capitalocene? (PM Press, 2016). We chat with Jason about his most recent work, co-authored with Raj Patel, A History of the World in Seven Cheap Things (U California Press, 2017), forthcoming this October. We talk about why he wanted to write a book for a broader audience, the problems with the “anthropocene” concept in the human sciences, how “capitalocene” can improve our thinking about world history, and how we can avoid vulgar materialism in critical environmental research and activism today. We cover the role that states and agriculture have played in shaping modern capitalism and Jason calls for a seriously engaged pluralism to tackle the urgent challenges of our era. We discuss the cheapening or thingification of life, capitalism as a gravitational field, the importance of frontiers, the violence of the Great Domestication, and why if green energy remains in the mode of “cheap fuel” nothing will change about capitalist accumulation. Jason explains why racial and gender domination are so often lacunae in critiques of petromodernity. Finally we ruminate on how to unmake the capitalist world-ecology and the key principles of the “reparation ecology” that Jason and his colleagues are calling for. Tired of the debate within the left about whether to prioritize jobs or the environment? Then you’ll want to listen on
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