Archive | May 2014

BLM Job Announcements

blm-logo

Message from BLM:  We are pleased to announce new, exciting positions available at BLM – BUREAU OF LAND MANAGEMENT.   It is our hope that qualified, career oriented individuals at your organization or other professionals known to you will actively consider this position and apply accordingly.  Efforts on your part to disseminate this information are greatly appreciated.

Position Information:
Job Description:  Geologist (Recent Graduate);
Announcement Number:  UT-PTHWYS-2014-0012;
Location(s) of position:  Vernal, UT, US;
Salary:  $39,179 – $62,297;
Applications will be accepted until:  05/27/2014.
For additional information on this job posting, please go to:  https://jobs.mgsapps.monster.com/blm/vacancy/viewVacancyDetail!execute.hms?orgId=3&jnum=109614

Position Information:
Job Description:  Rangeland Management Specialist;
Announcement Number:  MT-DEU-2014-0058;
Location(s) of position:  Malta, MT, US;
Salary:  $57,982 – $75,376;
Applications will be accepted until:  06/03/2014.
For additional information on this job posting, please go to:  https://jobs.mgsapps.monster.com/blm/vacancy/viewVacancyDetail!execute.hms?orgId=3&jnum=109913

Position Information:
Job Description:  Rangeland Management Specialist;
Announcement Number:  NV-DEU-2014-0095;
Location(s) of position:  Battle Mountain, NV, US;
Salary:  $31,628 – $50,932;
Applications will be accepted until:  05/29/2014.
For additional information on this job posting, please go to:  https://jobs.mgsapps.monster.com/blm/vacancy/viewVacancyDetail!execute.hms?orgId=3&jnum=109675

Advertisements

Reminder: Photo Contest for 2015 Calendar – deadline extended to June 30, 2014

March_web

March 2014 calendar photo. Credit: Matthew Richardson

Calling all photographers! NBMG is still accepting photographs for the 2015 Nevada Geology Calendarthrough June 30, 2014.  If you have photographs of interesting geologic features or landscapes from your fieldwork that you would like to submit for next year’s calendar, please email Jack Hursh at NBMG (jhursh@unr.edu).

Here are the details for this contest for the 2015 calendar:

  • Deadline for entries is June 30, 2014.
  • Photos need to be taken in Nevada. A location description and/or GPS coordinates should accompany submissions along with description.
  • High-quality, high-resolution photo files of at least 300 dpi are required for quality printing.
  • E-mail submissions to Jack Hursh (jhursh@unr.edu).
  • NBMG Cartographers will make the final decision on the winning photos.
  • Prizes will be awarded for first-, second-, and third-place winners.

Pacific Region Geospatial Data Announcements

The following message is forwarded from Drew Decker and Carol Ostergren at the U.S. Geological Survey.


From:
smac list On Behalf Of Decker, Drew Sent: Wednesday, May 14, 2014 10:58 AM Subject: [SMAC] Pacific Region geospatial data announcements

Hello everyone

Here are a few mapping-related announcements that you may be interested in:

  • National Hydrography Dataset (NHD) releases Web HEM Tool.  HEM stands for Hydrography Event Management and is a tool developed to help relate users’ data to the NHD network as events.  Please see announcement on pages 4 and 5 in the latest NHD Newsletter here:  http://nhd.usgs.gov/newsletters/News_13_6_April.pdf
  • New urban imagery is now available for a number of California cities.  The datasets are natural color and have a one foot resolution.  The data cover the Fresno, Modesto, Oxnard, Stockton, and Sacramento urban areas.  Data can be downloaded through the EarthExplorer site: earthexplorer.usgs.gov (all cities) and The National Map Viewer site: nationalmap.gov/viewer (all except Modesto).
  • USTopo maps go into production for CA and NV in December, 2014. Please consider validating structure points (hospitals, post offices, schools, etc.) through our National Map Corps program. Watch for upcoming webinars.  https://my.usgs.gov/confluence/display/nationalmapcorps/Home [Additional note: these new edition maps will include PLSS information.]

Thanks,

Carol Ostergren

Drew Decker

—————————————————————————————————–

Drew Decker
Geospatial Liaison for Pacific Region
U.S. Geological Survey
4165 Spruance Road, Suite 200
San Diego, CA 92101
619-225-6430
619-417-2879 cell
619-225-6101 fax
ddecker@usgs.gov
http://liaisons.usgs.gov/geospatial/California/
http://liaisons.usgs.gov/geospatial/Hawaii/
USNG 11S MS 8026 2158

Hammond and Blewitt Paper in Nature

hammond_CA_aqueduct_GreatValley_f

Water in Southern California’s Great Valley flows along the California Aqueduct. Credit: Bill Hammond

Bill Hammond and Geoff Blewitt (both of Nevada Bureau of Mines and Geology/Nevada Geodetic Laboratory and Nevada Seismological Laboratory in the College of Science at UNR) are co-authors on this paper released online May 14, 2014 in the journal Nature.

Uplift and seismicity driven by groundwater depletion in central California
 By Colin B. Amos, Pascal Audet, William C. Hammond, Roland Bürgmann, Ingrid A. Johanson, and Geoffrey Blewitt

Nature (2014) doi: 10.1038/nature13275
http://www.nature.com/nature/journal/vaop/ncurrent/full/nature13275.html?WT.ec_id=NATURE-20140515

Abstract: “Groundwater use in California’s San Joaquin Valley exceeds replenishment of the aquifer, leading to substantial diminution of this resource [references 1-4] and rapid subsidence of the valley floor [reference 5]. The volume of groundwater lost over the past century and a half also represents a substantial reduction in mass and a large-scale unburdening of the lithosphere, with significant but unexplored potential impacts on crustal deformation and seismicity. Here we use vertical global positioning system measurements to show that a broad zone of rock uplift of up to 1–3 mm per year surrounds the southern San Joaquin Valley. The observed uplift matches well with predicted flexure from a simple elastic model of current rates of water-storage loss, most of which is caused by groundwater depletion [reference 3]. The height of the adjacent central Coast Ranges and the Sierra Nevada is strongly seasonal and peaks during the dry late summer and autumn, out of phase with uplift of the valley floor during wetter months. Our results suggest that long-term and late-summer flexural uplift of the Coast Ranges reduce the effective normal stress resolved on the San Andreas Fault. This process brings the fault closer to failure, thereby providing a viable mechanism for observed seasonality in microseismicity at Parkfield [reference 6] and potentially affecting long-term seismicity rates for fault systems adjacent to the valley. We also infer that the observed contemporary uplift of the southern Sierra Nevada previously attributed to tectonic or mantle-derived forces [references 7-10] is partly a consequence of human-caused groundwater depletion.”

Press release from NSF:
http://nsf.gov/news/news_summ.jsp?cntn_id=131393&org=NSF&from=news

Links to other stories about this research:
http://newscenter.berkeley.edu/2014/05/14/central-valley-groundwater-depletion-raises-sierra-and-may-trigger-small-earthquakes/

Read about the Nevada Geodetic Laboratory:
http://geodesy.unr.edu/