 |
| Titel |
Comment on "Technical Note: On the Matt–Shuttleworth approach to estimate crop water requirements" by Lhomme et al. (2014) |
| VerfasserIn |
W. J. Shuttleworth |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1027-5606
|
| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 18, no. 11 ; Nr. 18, no. 11 (2014-11-05), S.4403-4406 |
| Datensatznummer |
250120518
|
| Publikation (Nr.) |
 copernicus.org/hess-18-4403-2014.pdf |
|
|
|
|
|
| Zusammenfassung |
| It is clear from Lhomme et al. (2014) that aspects of the explanation of the
Matt–Shuttleworth approach can generate confusion. Presumably this is
because the description in Shuttleworth (2006) was not sufficiently explicit
and simple. This paper explains the logic behind the Matt–Shuttleworth
approach clearly, simply and concisely. It shows how the Matt–Shuttleworth
can be implemented using a few simple equations and provides access to
ancillary calculation resources that can be used for such implementation. If
the crop water requirement community decided that it is preferable to use
the Penman–Monteith equation to estimate crop water requirements directly
for all crops, the United Nations Food and Agriculture Organization could
now update Irrigation and Drainage Paper 56 using the Matt–Shuttleworth
approach by deriving tabulated values of surface resistance from Table 12 of
Allen et al. (1998), with the estimation of crop evaporation then being
directly made in a one-step calculation using an equation similar to that
already recommended by the United Nations Food and Agriculture Organization
for calculating reference crop evaporation. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|