4,082 research outputs found
Snow persistence grids and snow zone shape files for the western United States
These files were created by Cara Moore and Brandon Stone under the guidance of Stephanie Kampf at Colorado State University in July, 2012.Zip file includes ReadMe and data files.This study maps the geographic extent of intermittent and seasonal snow cover in the western United States using thresholds of 2000–2010 average snow persistence derived from moderate resolution imaging spectroradiometer snow cover area data from 1 January to 3 July. Results show seasonal snow covers 13% of the region, and intermittent snow covers 25%. The lower elevation boundaries of intermittent and seasonal snow zones increase from north-west to south-east. Intermittent snow is primarily found where average winter land surface temperatures are above freezing, whereas seasonal snow is primarily where winter temperatures are below freezing. However, temperatures at the boundary between intermittent and seasonal snow exhibit high regional variability, with average winter seasonal snow zone temperatures above freezing in west coast mountain ranges. Snow cover extent at peak accumulation is most variable at the upper elevations of the intermittent snow zone, highlighting the sensitivity of this snow zone boundary to climate conditions.United States Geological Survey, Western Mountain Initiative
Stephanie Mathson interviews poet and author Judith Kerman
Poet and author Judith Kerman talks about her experience as a Fulbright scholar in the Dominican Republic, her work translating poems by Cuban poet Dulce Mar\ueda Loynaz, learning Spanish, translating poems from Spanish, and her book "Retrofitting Blade Runner". Kerman is interviewed by Stephanie Mathson of the Michigan State University Libraries. Part of the MSU Libraries' Michigan Writers Series
Stephanie Mathson interviews poet and author Jack Ridl
Poet and author Jack Ridl explains how he began writing, the writer series at Hope College, his coach poems, his chapbook "Against elegies," how working and living in Michigan shapes his work, and works in progress. Ridl is interviewed by Stephanie Mathson of the Michigan State University Libraries. Part of the MSU Libraries' Michigan Writers Series
Stephanie Mathson interviews poet and author Josie Kearns
Poet and author Josie Kearns, professor of creative writing and literature at the University of Michigan, talks about teaching and writing, natural scenery in Michigan, her editorship of the book "New Poems From the Third Coast", her book "New Numbers", and other works in process. Kearns is interviewed by Stephanie Mathson from the Michigan State University Libraries for the MSU Libraries' Michigan Writers Series
Kara Gust interviews author and bioregionalist Stephanie Mills
Author and ecologist Stephanie Mills talks about how she started writing and publishing, writing on nature and the environment, the challenges of being a writer, the influence of Michigan on her work, bio-regionalism, and a new book she is working on. Mills is interviewed by Michigan State University Librarian Kara Gust for the Michigan State University Libraries' Michigan Writers Series
Making a market for Miscanthus: Can new contract designs solve the biofuel investment hold-up problem?
We present designs for optimal contracts to solve the investment hold-up problem for perennial crops for the biofuel industry. A fixed-price contract is ex-ante efficient but renegotiation-proof for a limited range of discount parameters. A perfectly- indexed contract is both renegotiation-proof and ex-post efficient. Provided long-run land prices are stationary, the expected cost for both contracts converges to the long-run expected price of land for a risk-neutral farmer.Biofuels, Miscanthus, contract theory, industrial organization, renegotiation-proof contract, Marketing,
Author and bioregionalist Stephanie Mills reads her selected works at the Michigan Writers Series
Author and ecologist Stephanie Mills reads from her first book "Whatever happened to ecology?" and from "Tough little beauties," then answers questions from the audience. The event is convened by Peter Berg, head of Michigan State University Libraries' Special Collections. Part of the Michigan State University Libraries' Michigan Writers Series. Held in the Main Library
Stephanie Mathson interviews essayist and memoirist Robert Root
Essayist and memoirist Robert Root, professor of English at Central Michigan University, talks about his book "Recovering Ruth" and the genealogical research research in his work and his role as both a university professor and an author. He also shares his views on creative nonfiction, Michigan as a source of inspiration, and works in progress. Root is interviewed by Stephanie Mathson of the Michigan State University Libraries for the MSU Libraries' Michigan Writers Series
Stephanie and Jonathan Kimbro
Jonathan and his older sister Stephanie Kimbro in front of their house in a late Wilmington, NC snowfall.
Wilmington received 4.2 inches of snow in March of 1983, and a record 2.9 inches for the day on March 24
Changes in Andes snow cover from MODIS data, 2000–2016
Abstract. The Andes span a length of 7000 km and are important for sustaining regional
water supplies. Snow variability across this region has not been studied in
detail due to sparse and unevenly distributed instrumental climate data. We
calculated snow persistence (SP) as the fraction of time with snow cover for
each year between 2000 and 2016 from Moderate Resolution Imaging
Spectroradiometer (MODIS) satellite sensors (500 m, 8-day maximum snow cover
extent). This analysis is conducted between 8 and 36∘ S due to high
frequency of cloud (> 30 % of the time) south and north of this range.
We ran Mann–Kendall and Theil–Sens analyses to identify areas with
significant changes in SP and snowline (the line at lower elevation where
SP = 20 %). We evaluated how these trends relate to temperature and
precipitation from Modern-Era Retrospective Analysis for Research and
Applications-2 (MERRA2) and University of Delaware datasets and climate
indices as El Niño–Southern Oscillation (ENSO), Southern Annular Mode
(SAM), and Pacific Decadal Oscillation (PDO). Areas north of 29∘ S
have limited snow cover, and few trends in snow persistence were detected. A
large area (34 370 km2) with persistent snow cover between 29 and
36∘ S experienced a significant loss of snow cover (2–5 fewer days
of snow year−1). Snow loss was more pronounced (62 % of the area
with significant trends) on the east side of the Andes. We also found a
significant increase in the elevation of the snowline at
10–30 m year−1 south of 29–30∘ S. Decreasing SP correlates
with decreasing precipitation and increasing temperature, and the magnitudes
of these correlations vary with latitude and elevation. ENSO climate indices
better predicted SP conditions north of 31∘ S, whereas the SAM
better predicted SP south of 31∘ S.
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