Drought in Managed Systems - Snake River Plain
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- David Hoekema presented to the Idaho Water Supply Committee about drought conditions in managed water systems in the Snake River Plain. - The committee meets monthly from January to April to track drought, coordinate agencies, and provide public information. - Members include various Idaho state agencies and federal agencies. - The presentation defined drought in the western US and discussed climate data, water storage levels, groundwater levels, and water management strategies for the region. - Data showed below average snowpack levels and reservoir storage declines in 2011, 2013, 2014 and 2015 compared to historical averages, indicating drought conditions.
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NOAA California Drought Service Assessment - Kevin Werner, Western Regional C...
The document summarizes a NOAA assessment of its effectiveness in providing data, forecasts, and services to decision-makers in California during the 2012-2014 drought. The assessment found that stakeholders wanted improved seasonal precipitation forecasts. It also found that water managers needed a holistic view of water systems incorporating physical and biological factors. The assessment recommended NOAA partner with other agencies to develop full natural flow modeling and forecasts. It also recommended improving coordination of NOAA's drought expertise across the agency.
USDM Panel Discussion
The document discusses indicators for drought monitoring in California, including snowpack, reservoir conditions, water supply allocations, conservation efforts, proclamations, precipitation indices, and rangeland condition. It also mentions the importance of coordination across agencies and improving long-term forecasts.
U.S. Drought Monitor - A look behind the scenes
The US Drought Monitor has evolved significantly since its inception in 1999. It began as an experimental map created in basic software to track intensifying dryness. Over time, the map was refined with input from experts and switched to using GIS software and data. Each week, the author leads a collaborative process to create drafts incorporating feedback and balancing local impacts with precipitation data. By Wednesday, the final map and narrative are sent to the NDMC for publication on Thursdays. The behind-the-scenes process to generate this weekly synthesis of drought conditions is extensive.
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EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
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among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
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The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
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Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
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Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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The debris of the ‘last major merger’ is dynamically young
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1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
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Drought in Managed Systems - Snake River Plain
- 1. Drought in Managed Systems—Snake River Plain Presented by David Hoekema Water Supply Committee Meeting Date: April 14th, 2015
- 2. Idaho Water Supply Committee Idaho Department of Water Resources (IDWR) hosts meetings • Meets every 2nd week of the month (Jan-April) • April 1st marks the beginning of the Irrigation Season and Peak Snowpack. • Membership - IDWR, Homeland Security, Idaho Department of Agriculture, Idaho F&G, USBR, NWS, NRCS, USACE, USGS, USFS, Farm Service Agency, IPCo • Responsibilities - Track drought, coordinate with agencies, provide public information
- 3. Defining Drought in the West • Climate (Rain, Temp, and SWE) • Warm and Dry Winter • Unusual August rains (PDSI, SPI, etc.) • Storage Supplies vs. Irrigated Regions • USBR Hydromet • Supply vs. Demand • Groundwater (responds to climate and management) • Managed conjunctively • Managed thru mitigation (rental pools)
- 7. 2011 2013
- 8. 2011 2013
- 11. Eastern Snake River BasinWestern Snake River Basin Payette River Boise River
- 12. Eastern Snake River Basin Western Snake River Basin
- 13. 0 5 10 15 20 25 30 1-Oct 1-Nov 1-Dec 1-Jan 1-Feb1-Mar 1-Apr 1-May 1-Jun SnowWaterEquivalent[SWE,in] North Fork Composite [Long Valley, Bear Basin, Squaw Flat, Burndage Reservoir, Secesh Summit, Big Creek] Median 1981-2010 2013 2014 2015 0 5 10 15 20 25 30 SnowWaterEquivalent[SWE, in] Long Valley-Snotel Elevation 4890 ft Median 1981-2010 2013 2014 2015 60% 42%
- 17. 0 2,000,000 4,000,000 6,000,000 8,000,000 10,000,000 12,000,000 14,000,000 16,000,000 18,000,000 20,000,000 CumulativeStorageChange(acre-feet) CumulativeVolume Change of Water Stored Within ESPA Water Budget Volume Change ESPAM1.1 Simultaneous Volume Change Declines in the eastern Snake Plain aquifer