[GRASS-SVN] r71493 - grass/trunk/temporal/t.rast.accdetect

[svn_grass at osgeo.org]

Author: veroandreo
Date: 2017-09-16 03:33:41 -0700 (Sat, 16 Sep 2017)
New Revision: 71493

Modified:
   grass/trunk/temporal/t.rast.accdetect/t.rast.accdetect.html
Log:
t.rast.accdetect: manual page minor enhancements

Modified: grass/trunk/temporal/t.rast.accdetect/t.rast.accdetect.html
===================================================================
--- grass/trunk/temporal/t.rast.accdetect/t.rast.accdetect.html	2017-09-15 14:23:11 UTC (rev 71492)
+++ grass/trunk/temporal/t.rast.accdetect/t.rast.accdetect.html	2017-09-16 10:33:41 UTC (rev 71493)
@@ -4,8 +4,8 @@
 temporally accumulated space time raster datasets created by
 <a href="t.rast.accumulate.html">t.rast.accumulate</a>.
 
-This module expects a space time raster dataset as input that is the result 
-of a <a href="t.rast.accumulate.html">t.rast.accumulate</a> run.
+This module's input is a space time raster dataset resulting from 
+a <a href="t.rast.accumulate.html">t.rast.accumulate</a> run.
 <p>
 The <b>start</b> time and the <b>end</b> time of the pattern detection 
 process must be set, eg. <b>start="2000-03-01" end="2011-01-01"</b>. 
@@ -13,18 +13,18 @@
 the accumulation run that produced the input space time raster dataset. 
 In addition a <b>cycle</b>, eg. "8 months", can be specified, that 
 defines after which time interval the accumulation pattern detection 
-process restarts. The <b>offset</b> option specifies the time between 
-two cycles that should be skipped, eg. "4 months". Please make sure 
-that the <b>cycle</b> and <b>offset</b> options are same as in the 
-accumulation process that produces the input space time raster dataset, 
+process restarts. The <b>offset</b> option specifies the time that 
+should be skipped between two cycles, eg. "4 months". The <b>cycle</b> 
+and <b>offset</b> options must be exactly the same that were used in the 
+accumulation process that generated the input space time raster dataset, 
 otherwise the accumulation pattern detection will produce wrong 
 results.
 <p>
-The <b>minimum</b> and <b>maximum</b> values of the pattern detection 
-process can be set, either by using space time raster datasets or 
+The <b>minimum</b> and <b>maximum</b> values for the pattern detection 
+process can be set either by using space time raster datasets or 
 by using fixed values for all raster cells and time steps. 
 <p>
-Using space time raster datasets allow specifying minimum and maximum 
+Using space time raster datasets allows to specify minimum and maximum 
 values for each raster cell and each time step. For example, we want to 
 detect the germination (minimum value) and harvesting (maximum value) 
 dates for different crops in Germany using the growing-degree-day (GDD) 
@@ -33,31 +33,32 @@
 specify different GDD germination/harvesting (minimum/maximum) values 
 for different raster cells and different years.
 <p>
-The raster maps that specifies the minimum and maximum values of the 
+The raster maps that specify the minimum and maximum values of the 
 actual granule will be detected using the following temporal relations: 
-equals, during, overlaps, overlapped and contains. First all maps with 
-equal time stamps to the current granule of the input STRDS will be 
-detected, the first minimum map and the first maximum map that were 
-found are used as range definitions. If no equal maps are found then 
-maps with a temporal during relation are detected, then maps that 
-temporally overlap the actual granules, until maps are detected that 
-have a temporal contain relation. If no maps are found or 
-minimum/maximum STRDS are not set, then the <b>range</b> option is 
-used, eg. <b>range=480,730</b>.
+equals, during, overlaps, overlapped and contains. First, all maps with 
+time stamps <i>equal</i> to the current granule of the input STRDS will be 
+detected, the first minimum map and the first maximum map that are 
+found will be used as range definitions. If no equal maps are found, then 
+maps with a temporal <i>during</i> relation will be detected, then maps 
+that temporally <i>overlap</i> the actual granules and finally, maps that 
+have a temporal <i>contain</i> relation will be detected. If no maps are 
+found or minimum/maximum STRDS are not set, then the <b>range</b> option 
+is used, eg. <b>range=480,730</b>.
 <p>
 The <b>base</b> name of of the generated maps must always be set.
 <p>
-This module produces two output space time raster datasets. The 
-<b>occurrence</b> output STRDS stores the time in days from the begin 
-of a cycle for each raster cell and time step that has a value within 
-the minimum and maximum definition. These values can be used to compute 
-the duration of the recognized accumulation pattern. The 
-<b>indicator</b> output STRDS uses three values, that can be set using 
-the <b>staend</b> option, to mark raster cells with integer values that 
-indicate the start, the intermediate state and the end of a 
-accumulation pattern. As default specifies the value 1 the start, the 
-value 2 the intermediate state and the value 3 the end of the 
-accumulation pattern in a cycle.
+This module produces two output space time raster datasets: occurrence 
+and indicator. The <b>occurrence</b> output STRDS stores the time in 
+days from the beginning of a given cycle for each raster cell and time 
+step that has a value within the minimum and maximum definition. These 
+values can be used to compute the duration of the recognized accumulation 
+pattern. 
+The <b>indicator</b> output STRDS uses three integer values to mark 
+raster cells as beginning, intermediate state or end of an accumulation 
+pattern. By default, the module uses 1 to indicate the start, 2 for 
+the intermediate state and 3 to mark the end of the accumulation pattern 
+in a cycle. These default values can be changed using the <b>staend</b> 
+option.
 
 <h2>EXAMPLE</h2>