Dry deposition parameters

In subroutine inisurf of the module dry_deposition of TM3, the files NH3_conc.d, dep_param.d, soilph.d and lsmlai.d are read.

Oceanic surface equilibrium concentrations of ammonia

The program to make file NH3_conc.d at the right TM resolution seems absent. The concentrations iof NH in ocean surface water are from bouwman1997 and given in 10 mol/l.

lsmlai.d is regridded by program inter_lai from the 12 monthly files LAI_T42_NN (with NN = 01 to 12). The LAI data have been derived from the Olson ecosystem database (0.5 X 0.5 degrees), which discerns 46 ecosystems and their characteristics, e.g. LAI.

Add reference

This can be downloaded from NOAA NGDC:

http://www.ngdc.noaa.gov/seg/eco/cdroms/gedii_a/datasets/a05/ow.htm

or from CDIAC:

http://cdiac.esd.ornl.gov/epubs/ndp/ndp017/ndp017.html

The original data files we use in TM3 are from ECHAM.

TM5

The vegetation database from ECMWF used in TM5 in module dry_deposition_cbm4 contains 20 vegetation types:

Id Vegetation type Frac.cover High/low LAI Evergreen

1 Crops and mixed farming 0.9 L 3 0

2 Short grass 0.85 L 2 0

3 Evergreen needle leaf trees 0.9 H 5 1

4 Deciduous needle leaf trees 0.9 H 5 0

5 Evergreen broadleaf trees 0.9 H 5 1

6 Deciduous broad leaf trees 0.99 H 6 0

7 Tall grass 0.7 L 2 0

8 Desert 0 O 0.5 0

9 Tundra 0.5 L 1 0

10 Irrigated crops 0.9 L 3 0

11 Semidesert 0.1 L 0.5 0

12 Ice caps and glaciers 9 O -9 0

13 Bogs and marshes 0.6 L 4 0

14 Inland water 9 O -9 0

15 Ocean 9 O -9 0

16 Evergreen shrubs 0.5 L 3 1

17 Deciduous shrubs 0.5 L 1.5 0

18 Mixed forest/woodland 0.9 H 5 0

19 Interrupted forest 0.9 H 2.5 0

20 Water and land mixtures 0.6 O 4 0

Id	Vegetation type	Frac.cover	High/low	LAI	Evergreen

1	Crops and mixed farming	0.9	L	3	0
2	Short grass	0.85	L	2	0
3	Evergreen needle leaf trees	0.9	H	5	1
4	Deciduous needle leaf trees	0.9	H	5	0
5	Evergreen broadleaf trees	0.9	H	5	1
6	Deciduous broad leaf trees	0.99	H	6	0
7	Tall grass	0.7	L	2	0
8	Desert	0	O	0.5	0
9	Tundra	0.5	L	1	0
10	Irrigated crops	0.9	L	3	0
11	Semidesert	0.1	L	0.5	0
12	Ice caps and glaciers	9	O	-9	0
13	Bogs and marshes	0.6	L	4	0
14	Inland water	9	O	-9	0
15	Ocean	9	O	-9	0
16	Evergreen shrubs	0.5	L	3	1
17	Deciduous shrubs	0.5	L	1.5	0
18	Mixed forest/woodland	0.9	H	5	0
19	Interrupted forest	0.9	H	2.5	0
20	Water and land mixtures	0.6	O	4	0

Values -9 for LAI, 9 for fractional cover indicate no value (How about 0 for fractional cover over desert?)

Note that the LAI unfortunately has no seasonal cycle.

Is this Henderson-Sellers?

Soil pH

These are soil pH data derived from a 0.5 x 0.5 degree database from [Batjes, 1995]. Each cell is divided into 5 categories:

category 1 : soil pH < 5.5
category 2 : 5.5 < soil pH < 7.3
category 3 : 7.3 < soil pH < 8.5
category 4 : soil pH > 8.5
category 5 : soil 4 < pH <8.5 ???

The sum of all categories should be 1 over land.

soilph.d is made by regridding soilpH_T42 with the help of program intersoilpH called from script non_annual.