Difference between
version 18
and
version 17:
Lines 10-12 were replaced by lines 10-11 |
- ## __Time sampling:__ Percentage of the dataset times within the timespan. [{Image src='ImageStackRandomlySelected.png' caption='Figure 1. Temporal samples from a time series of SST fields.' |
- height=400 width=400}] |
- ## __Time span delta:__ Maximum amount of time between a reference dataset time sample and the corresponding sample of another dataset (see Step 2.4) |
+ ## __Time sampling:__ Percentage of the dataset times within the timespan. This parameter defines the fraction of temporal fields in the selected subset of the dataset to be sampled. Sampling will be random based on this fraction. Figure 1 is a schematic of a data set, with each gray field corresponding to a latitude, longitude array at one instant in time. The blue slices correspond to fields randomly sampled from the time series. In this case the temporal sampling parameter was approximately 20%. [{Image src='ImageStackRandomlySelected.png' caption='Figure 1. Temporal samples from a time series of SST fields.' height=400 width=400}] |
+ ## __Time span delta:__ Maximum amount of time between a reference dataset time sample and the corresponding sample of another dataset (see Step 2.4) %%(color:red)Not sure what you are referring to here?%% |
Line 15 was replaced by line 14 |
- ## __Spatial sampling:__ Percentage of the area defined by the min/max latitudes and longitudes to sample. %%(color: red) We need the ppt figure from Peter C.%% |
+ ## __Spatial sampling:__ Percentage of the area defined by the min/max latitudes and longitudes to sample. This is determined by the number of samples per field times the number of pixels per sample divided by the total number of pixels in the defined subregion. Spatial sampling is performed on individual 2-d fields. Figure 2 shows the selection of a temporal sample that is to be sampled spatially. Figure 3 shows the samples. [{Image src='ImageStackRandomlySelected.png' caption='Figure 2. Selection of a temporal sample.' height=400 width=400}] [{Image src='ImageStackRandomlySelected.png' caption='Figure 3. Spatial samples in this temporal sample.' height=400 width=400}] |
Back to Ocean_SST_Conceptual,
or to the Page History.
|