Changeset 6931f61 in flex_extract.git for For_developers/Sphinx/Source/Documentation/disagg.rst

Timestamp:

Jul 8, 2020, 10:00:37 PM (4 years ago)

Author:

anphi <anne.philipp@…>

Branches:

master, ctbto, dev

Children:

e0005c9

Parents:

8a53342

Message:

Update Onlinedocumentation after review of language editing

File:

• For_developers/Sphinx/Source/Documentation/disagg.rst (modified) (3 diffs)

For_developers/Sphinx/Source/Documentation/disagg.rst

@@ -13 +13 @@
 
 .. csv-table:: Flux fields
-    :header: "Short Name", "Name", "Units", "Interpolation Type"
+    :header: "Short Name", "Name", "Units", "Disaggregation"
     :align: center
     :widths: 5,15,5,10
     
-    LSP,  "large-scale precipitation",          "m",          "modified linear interpolation"
-    CP,   "convective precipitation",           "m",          "modified linear interpolation"
-    SSHF, "surface sensible heat flux",         "J m:math:`^{-2}`",   "bicubic interpolation"
-    EWSS, "eastward turbulent surface stress",  "N m:math:`^{-2}` s", "bicubic interpolation"
-    NSSS, "northward turbulent surface stress", "N m:math:`^{-2}` s", "bicubic interpolation"
-    SSR,  "surface net solar radiation",        "J m:math:`^{-2}`",   "bicubic interpolation"
+    LSP,  "large-scale precipitation",          "m",          "precipitation "
+    CP,   "convective precipitation",           "m",          "precipitation"
+    SSHF, "surface sensible heat flux",         "J m :math:`^{-2}`",   "flux"
+    EWSS, "eastward turbulent surface stress",  "N m :math:`^{-2}` s", "flux "
+    NSSS, "northward turbulent surface stress", "N m :math:`^{-2}` s", "flux "
+    SSR,  "surface net solar radiation",        "J m :math:`^{-2}`",   "flux "
     
 
@@ -43 +43 @@
 
 In the old versions (below 7.1), a relatively simple method processes the precipitation fields in a way that is consistent with the linear interpolation between times where input fields are available that is applied in ``FLEXPART`` for all variables. 
-This scheme (from Paul James) at first divides the accumulated values by the number of hours (i.e., 3 or 6). ???
+This scheme (from Paul James) at first divides the accumulated values by the number of hours (i.e., 3 or 6).
 The best option for disaggregation, which was realised, is conservation within the interval under consideration plus the two adjacent ones. 
 Unfortunately, this leads to undesired temporal smoothing of the precipitation time series – maxima are damped and minima are raised. 
@@ -161 +161 @@
       
 The accumulated values for the other variables are first divided by the number of hours and
-then interpolated to the exact times using a bicubic interpolation which conserves the integrals of the fluxes within each timespan.
-Disaggregation is done for four adjacent time intervals (:math:`p_a, p_b, p_c, p_d`) which produces a new, disaggregated value that is the output at the central point of the four adjacent time intervals.
+then disaggregates to the exact times and conserves the integrals of the fluxes within each timespan.
+Disaggregation is done for four adjacent time intervals (:math:`F_0, F_1, F_2, F_3`) which produces a new, disaggregated value that is the output at the central point of the four adjacent time intervals.
+This new point :math:`F` is used for linear interpolation of the complete timeseries afterwards.
 
 .. math::
+
     
-    p_a &= (a_3 - a_0 + 3. * (a_1 - a_2)) / 6. \\    
-    p_b &= (a_2 + a_0) / 2. - a_1 - 9. * p_a / 2. \\
-    p_c &= a_1 - a_0 - 7. * p_a / 2. - 2. * p_b \\    
-    p_d &= a_0 - p_a / 4. - p_b / 3. - p_c / 2. 
-
-This new point :math:`p` is used for linear interpolation of the complete timeseries afterwards.
-
-.. math::
-    
-    p = 8. * p_a + 4. * p_b + 2. * p_c + p_d
+    F = -\frac{1}{12}F_0 + \frac{7}{12}F_1 + \frac{7}{12}F_2 -\frac{1}{12}F_3