Can we solve global water scarcity?

Can we solve global water scarcity?
This is a great article!

New Book Announcement: Management of Drip/Trickle or Micro Irrigation – Forthcoming Spring 2012

Management of Drip/Trickle or Micro Irrigation
By Megh R. Goyal, PhD, Professor in Agricultural and Biomedical Engineering, University of Puerto Rico

http://www.appleacademicpress.com

This important book—the only complete, one-stop manual on microirrigation worldwide—offers knowledge and techniques necessary to develop and manage a drip/trickle or micro irrigation system. The simplicity of the contents facilitates a technician to develop an effective micro irrigation system. Management of Drip/Trickle or Micro Irrigation includes the basic considerations relating to soil-water-plant interactions, with topics such as methods for soil moisture measurement; evapotranspiration; irrigation systems; tensiometer use and installation; principles of drip/ micro/trickle irrigation; filtration systems; automation; chloration; service and maintenance; design of drip irrigation and lateral lines; the evaluation of uniformity of application; and an economical analysis for selecting irrigation technology.

CROP WATER USE ( HARGREAVES ET EQUATION) WOLFRAM ALPHA WIDGET

CROP WATER USE ( HARGREAVES ET EQUATION) NEW WOLFRAM ALPHA WIDGET. Reference: Hargreaves, G. H. and Z. A. Samani, Reference Crop Evapotranspiration from Temperature. Appl. Eng. Agric., ASAE. 1(2). 1985,. pp.96-99.

Widget Application: Suppose you want to schedule irrigation by replacing the water evapotranspired by your crop each day.  1. Click on the appropriate link to get yesterdays solar radiation for your location: Puerto Rico or Northern Caribbean, 2. Check the internet for the average daily air temperature at your location (average = (minimum + maximum)/2),  3. Get the appropriate crop coefficient for your crop from this link, and 4. Finally, enter solar radiation, air temperature and crop coefficient into the widget to estimate ET. Multiply ET x acres x 1069.0663 to get the number of gallons of water you need to apply to your field.

Bill Gates to world: Spend more on farming

Bill Gates to world: Spend more on farming (CNN)

Here is the2012 Annual Letter from Bill Gates

Rescued Meteorological Data for the Caribbean Region – Excellent Historical Resource

Rescued Meteorological Data for the Caribbean Region – Excellent Historical Resource
These data are stored in NOAA’s digital library under the heading: Data Rescue Caribbean. Many of the recorded measurements are from the first half of the 20th Century.

For other interesting historical NOAA documents, check out the following link: http://docs.lib.noaa.gov/rescue/

CLIMATE IMPACT EQUITY LENS (CIEL) – CLIMATE CHANGE GETS PERSONAL

CLIMATE IMPACT EQUITY LENS (CIEL) – CLIMATE CHANGE GETS PERSONAL
Spanish Version

The Climate Impact Equity Lens (CIEL) is a new tool for comparing the net climate impacts felt by diverse individuals around the world, and for tracking individual impacts over time. CIEL demonstrates that climate change will affect each person differently.

At present, very little is being done to prevent dangerous climate change. Some people are already experiencing damages from changing temperatures and weather patterns, and from sea-level rise – but everyone is enjoying the “benefit” of not paying for more ambitious emission reductions. Looking only at today’s impacts, most – but not all – of us are net winners (saving more from inaction than we lose from climate damages). Over the course of this century, net losers will become more common; in the next century, it will be hard to find people who still benefit from inaction.

CIEL provides a graphic display of changes over time in each individual’s net economic impact from climate change. You can download several CIEL publications and a tool that allows you to input individual characteristics to estimate the personal impact of climate change.

The Climate Impact Equity Lens (CIEL) is a new tool for comparing the net climate impacts felt by diverse individuals around the world, and for tracking individual impacts over time. CIEL demonstrates that climate change will affect each person differently.

(Excerpted from CIEL website, 2011, Stockholm Environment Institute, 11 Curtis Avenue, Somerville, MA 02145, USA. Phone: 1(617) 627-3786. Email: CIEL@sei-us.org)

Yesterday’s Solar Radiation in the Northern Caribbean

Download Hourly and daily solar radiation data for the northern Caribbean here

pragwater.com is not just for Puerto Rico

Two weeks ago, pragwater.com started using a free online service called ClusterMaps. We were happy to learn that pragwater.com has received visits from people all over the world, 27 countries in all. Here is the breakdown:


Solar irrigation at Fern Ave Community Garden

Estudio Sobre El Uso De Agua Agrícola En Puerto Rico

Estudio Sobre El Uso De Agua Agrícola En Puerto Rico

This report provides agricultural water requirements for Puerto Rico through 2025.