Brian Collins

9 Questions 26 Answers 0 Followers

Questions related from Brian Collins

Would you use field capacity to evaluate soil workability?

I seek a relationship between soil Field Capacity (FC) and Lower Plastic Limit (LPL) or any other physical characteristics of a soil which can help evaluate soil workability. Would you use Field...

01 August 2021 4,570 3 View

What is the role of journals' reviewers? Should they be absolute judges?

- Ask questions where they are not sure/convinced about a statement/conclusion VS reject a statement/conclusion where they 'think' it is not correct? - Provide suggestions to improve a...

22 May 2020 2,992 7 View

Best confidence level for analysis of climatic trends?

Most of the studies on climatic trends adopt a confidence level of 90 or 95%, but don't mention any reason for the choice. What do you think should be the strategy to choose this value? Can we say...

09 January 2019 7,351 2 View

What are the best methods to analyze trend in a drought index time series?

Dear Fellows, There are numerous methods to analyze trend in a drought index (or any other agrohydrological) time series. However it is not obvious to me which one is the best and why? What do you...

26 January 2016 7,520 9 View

How can we estimate sowing date based on soil moisture and real farmer actions?

Hi, There are many algorithms aiming at estimating near-real sowing date for field crops mostly based on temperature and precipitation, and sometimes, soil moisture. But I am not sure which one...

23 August 2015 3,595 22 View

What is the best and most reliable soil database at the European level?

Hi, There are quite a few number of soil databases being used worldwide, each having different spatial resolution, coverage, and data quality. Among them, the JRC ESDB, the FAO/Others HWSD, and...

03 July 2015 9,800 3 View

Is there any way to use SWAT (via ArcSWAT interface) as a distributed or pixle-based model instead of a semi-distributed model?

As you know, SWAT is a semi-distributed model which works based on dividing a watershed into subbasins and subbasins into HRUs. But, is there any way to use SWAT like a distributed model? By this,...

27 May 2015 5,412 3 View

What are the best online free global daily weather databases?

Hi, Many online data bases have been developed over the last decades. But, many of them are country-specific (specially for the US) and most of them are not free. Do you know any network from...

17 May 2015 2,547 30 View

How Irrigation (and Drainage) Networks are Constructed Across the World? Main Canals First, then Tertiary Canals? Or vice versa?

The question to be answered is "How should we allocate financial resources while constructing irrigation (and drainage) networks?". We'd like to know about the factors affecting this decision....

09 August 2014 1,349 21 View