U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Southwest Watershed Research Center: Tucson, AZ
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                                    Software
                People

                    Staff Listing
                                    Careers


        


                    About SWRCSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Tucson, Arizona SWRC Docs





- ARS News & Events
- AgResearch Magazine
- Image Gallery
- News
- SWRC Bulletin (Winter 2015)
- SWRC Bulletin (Winter 2014)
- SWRC Bulletin (Winter 2013)
- SWRC Bulletin (Winter 2012)
- SWRC Bulletin (Summer 2010)
- SWRC Bulletin (Summer 2009)
- SWRC Bulletin (Winter 2009)
- SWRC Bulletin (Summer 2008)
- SWRC Bulletin (Winter 2008)
- SWRC Bulletin (Summer 2007)
- SWRC Bulletin (Winter 2006)
- SWRC Bulletin (Summer 2006)
- SWRC Bulletin (Spring 2006)
- SWRC Bulletin (Early 2006)
- SWRC Bulletin (Fall 2005)
- SWRC Bulletin (Summer 2005)
- SWRC Bulletin (Spring 2005)
- October 30, 2003
- February 12, 2003
- December 30, 2002
- September 2002
- April 16, 2001
- April 2001

Archived Page
 This page has been archived and is being provided for reference purposes only. The page is no longer being updated, and therefore, links on the page may be invalid.
 SWRC Bulletin (Early 2006)headline bar  The SWRC Quarterly
Sound Science for Watershed Decisions
Early 2006
http://www.tucson.ars.ag.gov/
Latest Science Results (not yet published)
(click on title for more information)


**Monitoring coarse sediment particle displacement using a radio frequency identification system**

**AGISframework for surface-layer soil moisture estimation combining satellite measurements and land surface modeling with soil physical property estimation**

**Mapping surface roughness and soil moisture using multi-angle radar imagery without ancillary data**

**Monitoringheadcut migration over four decades on a rangeland area in the southwesternUnited States**

**Sediment Yield From Small Semiarid Watersheds**

**The sensitivity of ecosystem carbon exchange to seasonal precipitation and woody plant communities**

**A downscaling method for distributing surface soil moisture within a microwave pixel: Application to Monsoon'90**

**Relationships between land-useDOM, and inorganic nitrogen concentrations in a semi-arid catchment.**

**Chapter 9:Integrating Science and Policy for Water Management**

**Hydrologic requirements of and evapotranspiration by riparian vegetation along theSanPedroRiver,Arizona**

**Changes in vegetation condition and surface fluxes during NAME 2004**

**Riparian vegetation classification from airborne laser scanning data with an emphasis on cottonwood trees**

**Automated Geospatial Watershed Assessment Tool (Agwa): Uncertainty Analysis of Common Input Data**

**Automated Geospatial Watershed Assessment (AGWA): AGIS-based Hydrologic Modeling Tool for Watershed Management and Landscape Assessment**

**KINEROS2 - New features and capabilities**

**Toward an automated tool for channel-network characterization, modeling, and assessment**

**Integrating hydrologic models and spatial data in a distributed internet application**

**KINEROS2 and the AGWA modeling framework**

**Discussant comments on upscaling of soil processes to a regional level**

**Hydrologic modeling uncertainty resulting from land cover misclassification**

**Planning for increasing irrigation efficiency in Mexico**

**Solving multiobjective problems in the irrigation districts ofMexico**

**Planeacion multiobjetivo en los distritos de riego enMexico**

**A method for estimating spatial distribution of forage residue and livestock grazing**
Papers Published This Quarter:
**(click on title to download a reprint)**
****
Semmens, D., Goodrich, D.C., Unkrich, C.L., Smith, R.E., Woolhiser, D.A., Miller, S.N. 2005. KINEROS2 and the AGWA modeling framework.Chapter 6 in The GWADI International Modeling Worshop, UNESCO on-line publication, 30 p., http://gwadi.org/shortcourses/chapters/Semmens_L6.pdf

Semmens, D.J., Goodrich, D.C. 2005. Planning change: Case studies illustrating the benefits of GIS and Land-Use data in environmental planning.Proceedings of the International Conference on Hydrological Perspectives for Sustainable Development, Feb. 23-25, 2005, Roorkee, India, p. 346-354.

Gonzalez-Dugo, M.P., Moran, M.S., Mateos, L., Bryant, R. 2005. Canopy temperature variability as an indicator of crop water stress severity.J. Irrig. Sci.


**Our full publication list is available at****http://www.tucson.ars.ag.gov/unit/Publications/search.html****.**

 
Future Science Events:Several workshops and meetings are coming up, as well as a very special presentation by SWRC Retired Scientist Ken Renard at the ARS Walnut Gulch Experimental Watershed. (click here for more information)

Rainfall Report:











WGEW and SRER data can be downloaded from the web site at http://www.tucson.ars.ag.gov/dap

Geographic locations of the three precipitation records can be found at /ARSUserFiles/20221000/images/sw_az3.jpg

Awards:
Check out the awards for ARS Tucson Scientist Russ Scott and SWRC Liaison Committee member Ruth Evelyn Cowan. (click here for more information)

Staff News:Meet our new Research Leader, Dr. Mark Nearing (click here). Tucson ARS Scientist Dean Martens, known for his intense scientific curiosity and wonderful sense of humor, passed away last November after a brief battle with cancer (click here).(Click here for additional staff news).****

**SWRC Quarterly:**
Contact the SWRC Research Leader, Dr. Mark Nearing at 670-6380 x152 or mnearing@tucson.ars.ag.gov.Mailing address is USDA ARS SWRC,2000 E. Allen Rd., Tucson,AZ85719and web address is http://www.tucson.ars.ag.gov/ .The SWRC Quarterly is on-line at/News/News.htm?modecode=53-42-45-00.

**SWRCMission:**
The Southwest Watershed Research Center conducts long-term research of soil, water and climate processes to better understand interactions with plants, animals and humans as a basis for management of semiarid watersheds.SWRC develops new technologies for land managers, including remote sensing, computer-aided decision tools, and ecosystem models.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov