Congratulations!!!

Congratulations to
Alfonso, M. B.,
Vitale, A. J.,
Menendez, M. C.,
Perillo, V.L.,
Piccolo, M. C.
Perillo, G.M.E.

Article: ECOSYSTEM ESTIMATION OF OXYGEN METABOLISM FROM DIEL TECHNIQUE IN A SHALLOW LAKE SALINE: THE SALT (ARGENTINA) ".

has-been accepted for publication in Hydrobiologia

SAFER annual meeting

During November 1-3 there will be held the 3° SAFER annual meeting. It will take place in the Station de Biologie des Laurentides (Universté de Montreal (http://www.sbl.umontreal.ca/).

Because of the SAFER project’s close links to the Global Lake Ecological Observatory Network (GLEON) the meeting is co-located with GLEON Annual Meeting that is taking place in Orford, Montreal from October 27th to October 31st

There will be attending the principal investigators as well as the investigators and students. The main objective of this meeting is to move forward in the research work in progress and in the development of new methodological approaches.

Hydrologic Modeling in the Watershed

This is a summary of the training course in Chile SAFER students, taught by Tom, Brian, Natalie and Beverley.

Hydrologic Modeling in the Watershed

30 Apr – 3 May 2014

Instructors:   

Tom Harmon, University of California Merced (SWAT, HYDRUS and PIHM)

Natalia Hoyos, Corporación Geológica ARES, Colombia (ArcGIS and SpatialAnalysis)

            Brian Reid, Centro CIEP (Ecosystem Services Models)

Beverley Wemple, University of Vermont (ArcHydro and ArcGIS)

General Workshop Objective: Develop skills in delineation and characterization of watershed attributes (contributing area for lakes, wetlands, rivers, or other study system. Followed by basic watershed processes and modeling of watershed hydrology.  The workshop will be conducted in the context of team-based problem solving, based on the cohort of graduate students in project SAFER, and using SAFER sites as case studies, or other student project sites. 

Specific Objectives:

1. Obtain and develop spatial data sets for characterization of watershed attributes: basin delineation, definition of stream network and discharge points, extraction and calculation of watershed area and corresponding geology/soils/vegetation cover. Familiarization with globally available ASTER elevation models, spatial regression modeling (to model rainfall distribution as a function of elevation).
2. Introduction to watershed modeling: theory, parameterization and execution of basic watershed models (SWAT, HYDRUS, PIHM).
3. Discussion/Literature review of the linking of watershed attributes and the evaluation of ecosystem services, or physical drivers of ecosystems.

Participants:

1.      Esteban Flores (Undergraduate, U de Concepcion)

2.      Hector Palacios (Undergraduate, U. de Concepcion)

3.      Alvaro Oniat (Masters, U. de Concepcion)

4.      Roxanna Ayllon (PhD Student, U Austral Valdivia)

5.      Dr. Anna Astorga (Paloma SiteCoordinator)

6.      Dr. Vanesa Perillo (PhD Candidate, U. Vermont)

7.      Facundo Scordo (PhD Candidate, IADO)

8.      Five Staff, DGA Aysen (30 May only)

Resources: 6 computers, shared between two participants each. Participants are requested to bring laptops with ESRI license where possible, however temporary 1 year licenses will be available if needed. Exercises will be conducted in groups of two, with students paired with DGA staff, initially focused on SAFER sites (please arrive with coordinates for your sites, or send to the instructors in advance, to facilitate download of Digital Elevation Data –DEM). Instruction will be multilingual, with only half of the students with advanced English: facilitation by Jorge Okuingttons, Anna Astorga, Roxanna Ayllon, Brian Reid and Natalia Hoyos.

Data and Model Portals:

SWAT/WEAP/PIHM etc.
https://eng.ucmerced.edu/snsjho/files/SAFER_Digital_Library/Graduate_Training_Program

ArcHydro(needed in addition to the 1 year ESRI instalation package)

http://blogs.esri.com/esri/arcgis/2011/10/12/arc-hydro-tools-version-2-0-are-now-available/

Proposed Sites:

(1)   Murta and Ibanez basin (Esteban, Hector, Alvaro, Brian: more data available for more advanced models, three participants working on their theses at this site).

(2)   Paloma Lakes Complex (Anna, some work has already been done)

(3)   Valdivia water supply (Roxanna)

(4)   Sengeur basin, Argentina (Facundo)

Available Data for Chile:

·         DEM: ASTER 30m (what I have has been poorly transformed, lots of banding, need to redo)

·         Hydrography: detailed data digitized from topographic maps.

·         Climate: BIOCLIM, DGA Catastro (20-30 yr summary of flow and meteorological data), and grid of six stations supplementing the Murta/Ibanez watersheds.

·         Vegetation/Land Use: detailed data with very high quality classification for the Aysen region

·         Soils: Soil depth distribution (modeling or interpolation) may be possible based on available raw data from 100+ sites in the region (B. Reid, S. Bertrand).

Agenda:

SPATIAL ANALYSIS using ArcGISand ArcHYDRO, 30 April, 1 May 2014

Beverley Wemple (University of Vermont, USA)

Natalia Hoyos (Corporación Geológica ARES, Colombia)

UNIT 1(1/2 day)

1.       Stream and watershed delineation

a.       DEM processing (fill, flowdirection, flowaccumulation)

b.      Defining lake boundary (extraction by attribute for the lake elevation, useful where lakes are large and or poorly delineated)

c.       Delineating stream networks

d.      Delineating watershed boundaries

e.      Define stream order

f.        Measuring flow length

2.       Topographic metrics

a.       Slope

b.      Aspect

c.       Relief ratio

Exercise:

-          run hydro routines to delineate streams and watershed boundary for example watershed

-          run slope grid and calculate mean slope and relief ratio (do for several subwatersheds)

-          calculate flow length from sample sites

-          Brief discussion on contributing area for defining extents of stream network

UNIT 2 (1/2 day)

3.       Extracting features for watersheds/study areas

a.       Clip (for vector data)

b.      Mask (for raster data)

c.       Buffer (e.g. stream network)

d.      Identity / Intersect / Union??

Exercise –

-          grid combine to overlay watershed boundaries and landuse/landcover to define for multiple watersheds

-          clip stream network for subwatershed

-          buffer high order streams and mask out landcover in stream corridor

UNIT 3 (1/2 day)

4.       Interpolation and spatial data modeling

a.       Kriging (with error estimate maps)

b.      Regression-based spatial models

Exercise:

-          use extract values to determine elevation for precip

-          build regression-based model of precipitation distribution

Watershed Modeling and Ecosystem Services Evaluation, 2-3 May 2014

Thomas Harmon (University ofCalifornia, Merced, USA)

Brian Reid (Centro CIEP, UA Chile)

1.        Rainfall-runoff modeling concepts and model structures (1/2 day)

2.       Model examples and tutorials (1 day)

a.       Water Evaluation and Planning System (WEAP)

b.      HYDRUS-2D

c.       Penn State Integrated Hydrology Model (PIHM)

Exercises and demos:

-          Review of model structure

-          Model domain pre-processing

-          Model input files (meteorology)

-          Calibration and model validation

-          Model output post-processing (using R or Matlab scripts)

3.       Ecosystem Services Valuation and Integration of Watershed Models (1/2 day)

Discussion items:

-          Review of ecosystem service types

-          ES model structures

-          Incorporating water and hydrologic processes in ES models

-          Evaluating climate change impacts using ES models

4.       One-on-one work sessions on model test cases (1.5 day)

Model case studies:

-          Detailed instruction on the use of Hydrus-1D for assessing soil hydraulics

-          Developing input files for meteorological variables

-          Constraining soil hydraulic parameters using Hydrus-1D soils library

-          Parameter identification schemes for soil hydraulic parameters

-          Application of Hydrus-1D to CIEP experimental sites

Allocation of time for course

·         Preparation: including reading assigned papers: 2-3 days

·         Theory and Applications: 4 days @ 8 hours per day

·         Independent assignments and practice sessions: as needed, typically 3-4 hours per evening over 4 days