Reply on RC2

General comments: Monteiro et al. present the core elements of a new in-situ network, which was established to monitor atmospheric CH4, CO2, H2S and d13CH4 in the Permian Basin. They detail: station design, instruments used, measurement and calibration procedures as well as data processing and flagging rules in detail. The dataset is made publicly available and the manuscript also includes a first order analysis of results, discussing relevant quantities such as diurnal cycles for each seasonn, intra-network mixing ratio gradient changes over time as well as the relationship between site level CH4 mixing ratios and meteorological conditions. Overall, the manuscript is well-written and sections are clearly structured. This manuscript fits well within the scope of ESSD and should be considered for publication after some minor and technical comments have been addressed.

General comments: Monteiro et al. present the core elements of a new in-situ network, which was established to monitor atmospheric CH4, CO2, H2S and d13CH4 in the Permian Basin. They detail: station design, instruments used, measurement and calibration procedures as well as data processing and flagging rules in detail. The dataset is made publicly available and the manuscript also includes a first order analysis of results, discussing relevant quantities such as diurnal cycles for each seasonn, intra-network mixing ratio gradient changes over time as well as the relationship between site level CH4 mixing ratios and meteorological conditions. Overall, the manuscript is well-written and sections are clearly structured. This manuscript fits well within the scope of ESSD and should be considered for publication after some minor and technical comments have been addressed.

We appreciate your comments and time to complete the review.
Specific and technical comments: L14: change to 'species' We changed to 'species'.
L17: suggest to change to: 'prior *to* deployment' or 'before deployment' We changed to 'prior to deployment'.
L24: Which tower are you referring to here? There are multiple towers in this network.
There is only one tower with H 2 S measurements (Hobbs, New Mexico). We added the specific location in the text for clarification.

L31: change to CO 2
We corrected the subscript.
We clarified this statement in the text adding the following sentence: "According to Ocko et al ( L110, figure 1: please add a symbol indication the location of Lea County Regional Airport or give an indication of its distance from the HOBB site. Please also update the labels of the 5 tower sites to match the manuscript (all uppercase letters). Furthermore, please consider adding information about the facility (e.g. O&G wells) locations or other CH4 emission priors to sub-figure (a) or at least refer to figure 7 here. It is very hard to judge if the network locations is suitable without knowing where emissions are to be expected. Figure 1b. We referred to Figure 7 to indicate known O&G wells location (added in figure caption).

We added the airport location and updated the tower's labels (uppercase). Changes can be seen in the updated
L125, table 1: please add the data of the move/re-install of CARL station in the Install data column.
We added the move/re-install date (Table 1).
L189: Presumable the δ13CH4 data is reported on the VPDB scale or some equivalent?
The isotopic ratios were tied to the Vienna Pee Dee Belemnite (VPDB) scale. We added a phrase to this effect.
L268: Please elaborate, what are 'hourly composites'? Are you referring to the average, median, mode of the measurement distribution gathered within one hour?
We changed this phrase to clarify. The text now says, "Composited means of hourly CH4 and CO2 mole fractions (averaged over summer and winter seasons)...".
L299: Consider adding the information on local time (especially for non-US readers), i.e. what is 20 -23 UTC in LT?