Order the Sentinel-1 processing levels according to the amount of processing (from little to much).RAWOCNSLCGRD

1. ### Break Down the Problem

To order the Sentinel-1 processing levels from the least amount of processing to the most, we need to identify each level and understand the processing involved in each.

2. ### Relevant Concepts

The Sentinel-1 processing levels are as follows:

• RAW: Raw data collected directly from the satellite with no processing.
• OCN: Order Completion, a level where data is organized for initial analysis but not processed further.
• SLC: Single Look Complex, where data is processed to provide both amplitude and phase information.
• GRD: Ground Range Detected, which is where further processing enhances the imagery to be usable for various applications.

3. ### Analysis and Detail

1. RAW: This represents the original state of the data, meaning no processing has been done. It is simply the raw signals detected by the satellite.
2. OCN: Some processing has been done to the raw signals, but it is still fairly basic.
3. SLC: This involves more sophisticated processing to deliver a complex image that retains information about amplitude and phase, suitable for advanced analysis.
4. GRD: This is the most processed level, where data has been converted to a format that is easy to interpret and use.

4. ### Verify and Summarize

After analyzing the levels, the order from the least to the most processing is established.

Final Answer

The ordered processing levels from least to most processing are: RAW < OCN < SLC < GRD.