* ARTS-XML-DATA-2-1-7

	
	* atmosphere/Earth/magfield/B[_u,_v,_w,.z].xml: Deleted (wrong units).

	* atmosphere/Earth/magfield/IGRF11*B[_u,_v,_w].xml:
	Added. Global magnetic field from IGRF-11 for a selection of years.

	* atmosphere/Earth/magfield/IGRF11*B.z.xml:
	Added. z_field corresponding to IGRF11 magnetic field data (up to 2000km).

	* atmosphere/Earth/magfield/readme.txt:
	Added. readme for data in this folder.



git-svn-id: https://radiativetransfer.org/svn/rt/arts-xml-data/trunk@7689 aaf1aab0-4228-0410-ad68-8dceda47f409

ChangeLog

+2012-06-26  Jana Mendrok <jana.mendrok@ltu.se>
+
+	* ARTS-XML-DATA-2-1-7
+	
+	* atmosphere/Earth/magfield/B[_u,_v,_w,.z].xml: Deleted (wrong units).
+
+	* atmosphere/Earth/magfield/IGRF11*B[_u,_v,_w].xml:
+	Added. Global magnetic field from IGRF-11 for a selection of years.
+
+	* atmosphere/Earth/magfield/IGRF11*B.z.xml:
+	Added. z_field corresponding to IGRF11 magnetic field data (up to 2000km).
+
+	* atmosphere/Earth/magfield/readme.txt:
+	Added. readme for data in this folder.
+
 2012-06-14  Jana Mendrok <jana.mendrok@ltu.se>
 
 	* ARTS-XML-DATA-2-1-6

atmosphere/Earth/magfield/B.z.xml → atmosphere/Earth/magfield/IGRF11_200km.B.z.xml

 <?xml version="1.0"?>
 <arts format="ascii" version="1">
 <GriddedField3>
-<Vector nelem="11">
+<Vector name="Pressure" nelem="11">
       1.01800000e+05
       1.27024718e-09
       9.46658152e-24
@@ -14,37 +14,37 @@
      2.69637918e-103
      1.72723558e-112
 </Vector>
-<Vector nelem="2">
+<Vector name="Latitude" nelem="2">
      -9.00000000e+01
       9.00000000e+01
 </Vector>
-<Vector nelem="2">
+<Vector name="Longitude" nelem="2">
       0.00000000e+00
       3.60000000e+02
 </Vector>
 <Tensor3 npages="11" nrows="2" ncols="2">
-       0        0
-       0        0
-  200000   200000
-  200000   200000
-  400000   400000
-  400000   400000
-  600000   600000
-  600000   600000
-  800000   800000
-  800000   800000
- 1000000  1000000
- 1000000  1000000
- 1200000  1200000
- 1200000  1200000
- 1400000  1400000
- 1400000  1400000
- 1600000  1600000
- 1600000  1600000
- 1800000  1800000
- 1800000  1800000
- 2000000  2000000
- 2000000  2000000
+ 0.00000e+00  0.00000e+00
+ 0.00000e+00  0.00000e+00
+ 2.00000e+05  2.00000e+05
+ 2.00000e+05  2.00000e+05
+ 4.00000e+05  4.00000e+05
+ 4.00000e+05  4.00000e+05
+ 6.00000e+05  6.00000e+05
+ 6.00000e+05  6.00000e+05
+ 8.00000e+05  8.00000e+05
+ 8.00000e+05  8.00000e+05
+ 1.00000e+06  1.00000e+06
+ 1.00000e+06  1.00000e+06
+ 1.20000e+06  1.20000e+06
+ 1.20000e+06  1.20000e+06
+ 1.40000e+06  1.40000e+06
+ 1.40000e+06  1.40000e+06
+ 1.60000e+06  1.60000e+06
+ 1.60000e+06  1.60000e+06
+ 1.80000e+06  1.80000e+06
+ 1.80000e+06  1.80000e+06
+ 2.00000e+06  2.00000e+06
+ 2.00000e+06  2.00000e+06
 </Tensor3>
 </GriddedField3>
 </arts>

atmosphere/Earth/magfield/readme.txt

+This directory contains Earth magnetic field data
+
+IGRF11*.xml
+------------
+
+- Global magnetic fields from IGRF11 model (created from Fortran code provided on IGRF-11 website: http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html)
+- naming convention: IGRF11_[YYYY]_[ResZ]-[ResLat]-[ResLon].B_[comp].xml
+  - YYYY....the year
+  - ResZ....the altitude resolution (in km)
+  - ResLat..the resolution in latitude (in deg)
+  - ResLon..the resolution in longitude (in deg)
+  - comp....the directional component of the field (v/u/w for north/east/up)
+
+- originally given over altitude, (globally fixed) conversion to pressure done assuming hydrostatic equilibrium with constants (gravity, gas constant, mean molecular weight) chosen as set or suggested by ARTS. resulting p_grid and z_field stored in IGRF11_[ResZ].B.z.xml (as true 3D with lat=[-90,90] and lon=[0,360]).
+
+- for more on IGRF11 see:
+International Geomagnetic Reference Field: the eleventh generation. International Association of Geomagnetism and Aeronomy, Working Group V-MOD. Participating members: C. C. Finlay, S. Maus, C. D. Beggan, T. N. Bondar, A. Chambodut, T. A. Chernova, A. Chulliat, V. P. Golovkov, B. Hamilton, M. Hamoudi, R. Holme, G. Hulot, W. Kuang, B. Langlais, V. Lesur, F. J. Lowes, H. Luhr, S. Macmillan, M. Mandea, S. McLean, C. Manoj, M. Menvielle, I. Michaelis, N. Olsen, J. Rauberg, M. Rother, T. J. Sabaka, A. Tangborn, L. Toffner-Clausen, E. Thebault, A. W. P. Thomson, I. Wardinski Z. Wei, T. I. Zvereva. Geophys. J. Int., Vol 183, Issue 3, pp 1216-1230, December 2010. DOI: 10.1111/j.1365-246X.2010.04804.x.