CLM land surface process model

       NCAR Land surface model CLM (Community Land Model) It's the earth system model CESM (Community Earth System Model) The model component of the land surface process in , It's a combination BATS、LSM and IAP94 After waiting for the advantages of many land surface models , A comprehensive land surface model developed by adding hydrological processes , It is currently the most developed and widely used land surface model in the world .CLM Biogeophysical processes with perfect models 、 Hydrological process 、 Biogeochemical processes and dynamic vegetation processes make the model not only simulate the physical processes related to vegetation cover and soil water and heat conduction , It can simulate surface runoff 、 Base flow 、 Vegetation canopy evaporation 、 Vegetation transpiration 、 Hydrological cycle variables such as soil evaporation , The carbon and nitrogen cycle simulation of dynamic vegetation can be realized through nested sub grids , It can also be used in frozen soil 、 Forest fire 、 Various studies on land surface processes such as urban canopy and land air interaction .

CLM The mode has been continuously developed and improved , It has developed to 4.5 edition , Abreast of the times 5.0 The version will also follow CESM2.0 Release , Pattern 5.0 This version mainly improves the hydrological process of soil and vegetation 、 Dynamic process of snow melting 、 Carbon and nitrogen cycle and coupling simulation, vegetation simulation and other main dynamic processes , in addition , The model introduces MOSART Runoff model replaces RTM, At the same time, introduce FATES Ecological succession model to improve the classic dynamic vegetation model (DGVM), When the ,CLM The model will have a broader application space in the study of land surface processes .

CESM、CLM Operating conditions and Linux Compilation basis

CESM、CLM Must be in Linux perhaps Unix Running in the environment

function CESM、CLM Necessary software and hardware requirements and environment construction

Linux The basic concept and operation of

Linux The basic concept and process of compilation

CLM Land surface process model practice technology application

CESM、CLM Basics

CLM Program acquisition 、 Structure and function  

obtain CESM、CLM Program code ,CLM Folder structure and respective functions

Get the latest or specific version CESM And CLM Code

Explain CLM Folder structure functions

CLM transplant 、 Installation and fast operation  

CLM Preparation of operation environment , compile 、 Installation and operation

Check and improve CLM Environment and software required for operation

For specific server environments CLM Machine File modify

Create a simple case, Compile and run this case

CLM Configuration options and data file preparation  

CLM Detailed explanation of the running configuration file , Preparation of data files required for operation

establish CLM case When the options and their significance

Run profile namelist Detailed explanation of , Selection of common options and their significance

function CLM Required data file structure and data file preparation method and procedure

Skillfully create according to the research content CLM case And run CLM

CLM Single point or area operation  

Have a good command of CLM Single point and regional operation case establish 、 Document preparation and operation

How to create a single point or area pattern

Preparation of documents required for single point and regional operation

Operation of single point and regional modes

understand CLM The structure of the code 、 Composition of main modules 、Fortran Modification of procedures understand CLM The main code structure understand CLM The composition of several modules and the corresponding program location Modify the code as needed , Compile operation

CLM Land surface process model practice technology application

 

understand CLM The main code structure

understand CLM The composition of several modules and the corresponding program location

Modify the code as needed , Compile operation