Changes between Version 129 and Version 130 of DevelopmentActivities/ORCHIDEE-DOFOCO

Timestamp:

2017-06-21T11:12:42+02:00 (7 years ago)

Author:

luyssaert

Comment:

--

DevelopmentActivities/ORCHIDEE-DOFOCO

@@ -189 +189 @@
 
 === Plant water stress ===
+
 === Dynamic SLA ===
+Similar to ORCHIDEE-CN, ORCHIDEE-CN-CAN users can choose to use a constant specific leaf area (SLA) or a dynamic (SLA) by setting the flag '''dyn_sla'''. SLA is a fundamental parameter in the allocation scheme and it is well established that SLA is dynamic in nature especially during leaf onset. The current implementation of dynamic SLA is basic and there is room to enhance consistency in the calculations, for example, by recalculation the allocation factors KF and LF as a function of SLA.
+
 === Forest management ===
+
 === Consistency checks ===
 The code distinguishes between three options to check for mass balance problems. These options are controlled by the parameter '''ERR_ACT'''. Always use ERR_ACT = 3 when developing and testing the code. Note that in addition to checking for mass balance closure ORCHIDEE-CN-CAN will also check for the preservation of veget_max. This is useful to make sure no surface area is lost when moving biomass from one PFT to another following natural disturbances, forest management, land cover changes and when using age classes. In some parts of the code, for example, modules that deal with disturbances, it is assumed that the tallest trees are stored in the last diameter class. When the difference in diameter between diameter classes becomes very small, this assumption could be violated. Therefore, the diameter classes are sorted to enforce the assumed order and where needed the order is checked.
@@ -201 +205 @@
 
 === Nitrogen cycle ===
+ORCHIDEE-CN-CAN strictly follows ORCHIDEE-CN where it concerns the implementation of the N-cycle. Following mass balance problems caused by negative N mineralization and followed by negative immobilization, the code has been slightly adjusted to ensure mass balance closure. The parameter '''ímpose_cn''' is used to control the N-cycle calculations. If set to y, C/N ratios are calculated but whenever N appears to be limiting, it is taken from the atmosphere to satisfy this need. This is the preferred setting when testing/developing the code without a proper spin-up. N-limitation will only be accounted for when setting imnpose_cn = n. With this setting the N-cycle is closed (checked when checking for mass balance closure) it will require a spin-up to produce reasonale results.
+
 === Recruitment ===