# Water stable isotopes for streams and precipitation samples in the HJ Andrews Experimental Forest, 2014-2023 ## Dataset - **Database Code:** HF028 - **Title:** Water stable isotopes for streams and precipitation samples in the HJ Andrews Experimental Forest, 2014-2023 - **Abstract:** Water samples have been collected for analysis of water stable isotopes (O18/16 and H2/H1) at different locations in the HJ Andrews Experimental Forest and over different periods since 2014 in the HJ Andrews Experimental Forest. The database includes: 1) grab samples collected over the stream network of the Andrews Forest on multiple sampling campaigns during various flow conditions. In each of the campaigns, the samples were collected at approximately 50–100-meter intervals in 1st–5th order streams across the network; 2) water samples collected in the Andrews Forest every 1–3 weeks between 2014 and 2018 in streams (Lookout Creek, Mack Creek, McRae Creek, WS01, WS02, WS07, and WS08) and bulk precipitation from benchmark meteorological stations (PRIMET, MACK, and H15MET) between 2014 and 2023; 3) stream and precipitation samples collected in the Andrews Forest at high temporal resolution during discrete storm events at Mack Creek in 2015; and 4) weekly grab samples from Lookout Creek and selected tributaries. - **Keywords:** droughts; tracers; disturbance; streamflow; stable isotopes; streams; water samples; disturbance - **Temporal coverage:** 2014-11-11 to 2023-05-28 - **Principal Investigator:** Catalina Segura ## Data Entities 1. Water isotopic ratios (O18/O16, H2/H1) of synoptic sampling in streams at HJA 2. Water isotopic ratios (O18/O16, H2/H1) from stream and precipitation at some streams and benchmark meteorological stations at HJA 3. High Resolution Water isotopic ratios of stream and precipitation at Mack Creek during discrete storm events 4. Water isotopic ratios (O18/O16, H2/H1) from weekly grab samples collected in Lookout Creek and selected tributaries ## Entity 1: Water isotopic ratios (O18/O16, H2/H1) of synoptic sampling in streams at HJA ### Attribute list - **DBCODE** — varchar, enum FSDB Database Code - **HF028** — FSDB Database Code HF028 - **ENTITY** — numeric(1), range 1.0000 1.0000, number Entity number - **TRIB_NAME** — varchar, enum Stream name of sample location - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **Cold Creek** — Cold Creek Synoptic Sample Sites - **Longer Creek** — Longer Creek Synoptic Sample Sites - **Lower Lookout** — Lower Lookout Creek Synoptic Sample Sites - **Mack Creek** — Mack Creek Synoptic Sample Sites - **McRae Creek** — McRae Creek Synoptic Sample Sites - **Nostoc Creek** — Nostoc Creeek Synoptic Sample Sites - **Shorter Creek** — Shorter Creek Synoptic Sample Sites - **Tributary No Name** — Tributary No Name Synoptic Sample Sites - **Upper Lookout** — Upper Lookout Creek Synoptic Sample Sites - **McRae Creek west tributary** — McRae Creek Tributary West Synoptic Sample Sites - **McRae Creek west tributary 2** — McRae Creek Tributary West 2 Synoptic Sample Sites - **Stream 2** — Stream 2 Synoptic Sample Sites - **Stream 5** — Stream 5 Synoptic Sample Sites - **Torrent Creek** — Torrent Creek Synoptic Sample Sites - **Watershed 6S** — Watershed 6S Synoptic Sample Sites - **Watershed 7S** — Watershed 7S Synoptic Sample Sites - **Watershed 8S** — Watershed 8S Synoptic Sample Sites - **SAMPLE_ID** — varchar, freetext Site code for the sampling location - **SAMPLE_DATE** — datetime, freetext Date of sample collection - **DEL18O** — numeric(0.210000), range -11.7830 -10.2210, permil Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) - **DEL2H** — numeric(0.060000), range -80.7690 -70.2860, permil Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) - **UTM_N** — numeric(1), range 4894945.5000 4902568.0200, meters Latitude North (datum: NAD_1983_UTM_Zone_10N) - **UTM_E** — numeric(1), range 559015.6200 570920.8800, meters Longitude East (datum: NAD_1983_UTM_Zone_10N) ## Entity 2: Water isotopic ratios (O18/O16, H2/H1) from stream and precipitation at some streams and benchmark meteorological stations at HJA ### Attribute list - **DBCODE** — varchar, enum FSDB Database Code - **HF028** — FSDB Database Code HF028 - **ENTITY** — numeric(1), range 2.0000 2.0000, number Entity number - **SITECODE** — varchar, enum Site code for the sampling location - **MCRAE** — McRae Creek - **GSWS01** — Andrews Watershed 1 Gaging Station - **GSWS02** — Andrews Watershed 2 Gaging Station - **GSWS07** — Andrews Watershed 7 Gaging Station - **GSWS08** — Andrews Watershed 8 Gaging Station - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **H15MET** — High 15 Meteorological Station - **PRIMET** — Primary Met Station NADP Recording RG - **TYPE** — varchar, enum Type of sample collected - **GB** — Grab sample of surface water - **PREC** — Bulk Precipitation - **SAMPLE_DATE** — datetime, freetext Date of sample collection - **DEL18O** — numeric(0.210000), range -19.3340 3.6900, permil Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) - **DEL2H** — numeric(0.060000), range -145.2750 -1.9050, permil Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) ## Entity 3: High Resolution Water isotopic ratios of stream and precipitation at Mack Creek during discrete storm events ### Attribute list - **DBCODE** — varchar, enum FSDB Database Code - **HF028** — FSDB Database Code HF028 - **ENTITY** — numeric(1), range 3.0000 3.0000, number Entity number - **SITECODE** — varchar, enum Site code for the sampling location - **MCRAE** — McRae Creek - **GSWS01** — Andrews Watershed 1 Gaging Station - **GSWS02** — Andrews Watershed 2 Gaging Station - **GSWS07** — Andrews Watershed 7 Gaging Station - **GSWS08** — Andrews Watershed 8 Gaging Station - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **H15MET** — High 15 Meteorological Station - **PRIMET** — Primary Met Station NADP Recording RG - **TYPE** — varchar, enum Type of sample collected - **GB** — Grab sample of surface water - **PREC** — Bulk Precipitation - **DATETIME** — datetime, freetext Date and time of sample collection (PST) - **DEL18O** — numeric(0.210000), range -10.9200 -3.4920, permil Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) - **DEL2H** — numeric(0.060000), range -74.5570 -9.9920, permil Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) ## Entity 4: Water isotopic ratios (O18/O16, H2/H1) from weekly grab samples collected in Lookout Creek and selected tributaries ### Attribute list - **DBCODE** — varchar, enum FSDB Database Code - **HF028** — FSDB Database Code HF028 - **ENTITY** — numeric(1), range 4.0000 4.0000, number Entity number - **STREAM_NAME** — varchar, enum Stream name of sample location - **McRae Creek** — McRae Creek - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **Nostoc Creek** — Nostoc Creek - **Longer Creek** — Longer Creek - **Cold Creek** — Cold Creek - **Upper Lookout** — Upper Lookout Creek - **COLLECTION_PT** — varchar, enum Collection point for the sampling location - **CC** — HF028 stream grab sample collection point at Cold Creek - **LO2** — HF028 stream grab sample collection point 2 at Upper Lookout - **LO1** — HF028 stream grab sample collection point 1 at Upper Lookout - **MR** — HF028 stream grab sample collection point at McRae Creek - **LO5** — HF028 stream grab sample collection point 5 at Upper Lookout - **MC** — HF028 stream grab sample collection point at Mack Creek - **LC** — HF028 stream grab sample collection point at Longer Creek - **NC** — HF028 stream grab sample collection point at Nostoc Creek - **LO3** — HF028 stream grab sample collection point 3 at Upper Lookout - **LO4** — HF028 stream grab sample collection point 4 at Upper Lookout - **SAMPLE_DATE** — datetime, freetext Date of sample collection - **DEL18O** — numeric(0.210000), range -11.7580 -10.0250, permil Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) - **DEL2H** — numeric(0.060000), range -80.6700 67.2830, permil Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) ## Attribute Definitions **COLLECTION_PT** Collection point for the sampling location **DATETIME** Date and time of sample collection (PST) **DBCODE** FSDB Database Code **DEL2H** Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) **DEL18O** Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) **ENTITY** Entity number **SAMPLE_DATE** Date of sample collection **SAMPLE_ID** Site code for the sampling location **SITECODE** Site code for the sampling location **STREAM_NAME** Stream name of sample location **TRIB_NAME** Stream name of sample location **TYPE** Type of sample collected **UTM_E** Longitude East (datum: NAD_1983_UTM_Zone_10N) **UTM_N** Latitude North (datum: NAD_1983_UTM_Zone_10N) ## Enumerated Domains ### DBCODE - **HF028** — FSDB Database Code HF028 ### TRIB_NAME - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **Cold Creek** — Cold Creek Synoptic Sample Sites - **Longer Creek** — Longer Creek Synoptic Sample Sites - **Lower Lookout** — Lower Lookout Creek Synoptic Sample Sites - **Mack Creek** — Mack Creek Synoptic Sample Sites - **McRae Creek** — McRae Creek Synoptic Sample Sites - **Nostoc Creek** — Nostoc Creeek Synoptic Sample Sites - **Shorter Creek** — Shorter Creek Synoptic Sample Sites - **Tributary No Name** — Tributary No Name Synoptic Sample Sites - **Upper Lookout** — Upper Lookout Creek Synoptic Sample Sites - **McRae Creek west tributary** — McRae Creek Tributary West Synoptic Sample Sites - **McRae Creek west tributary 2** — McRae Creek Tributary West 2 Synoptic Sample Sites - **Stream 2** — Stream 2 Synoptic Sample Sites - **Stream 5** — Stream 5 Synoptic Sample Sites - **Torrent Creek** — Torrent Creek Synoptic Sample Sites - **Watershed 6S** — Watershed 6S Synoptic Sample Sites - **Watershed 7S** — Watershed 7S Synoptic Sample Sites - **Watershed 8S** — Watershed 8S Synoptic Sample Sites ### SITECODE - **MCRAE** — McRae Creek - **GSWS01** — Andrews Watershed 1 Gaging Station - **GSWS02** — Andrews Watershed 2 Gaging Station - **GSWS07** — Andrews Watershed 7 Gaging Station - **GSWS08** — Andrews Watershed 8 Gaging Station - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **H15MET** — High 15 Meteorological Station - **PRIMET** — Primary Met Station NADP Recording RG ### TYPE - **GB** — Grab sample of surface water - **PREC** — Bulk Precipitation ### STREAM_NAME - **McRae Creek** — McRae Creek - **GSMACK** — Andrews Mack Creek Gaging Station - **GSLOOK** — Andrews Lookout Creek Gaging Station - **Nostoc Creek** — Nostoc Creek - **Longer Creek** — Longer Creek - **Cold Creek** — Cold Creek - **Upper Lookout** — Upper Lookout Creek ### COLLECTION_PT - **CC** — HF028 stream grab sample collection point at Cold Creek - **LO2** — HF028 stream grab sample collection point 2 at Upper Lookout - **LO1** — HF028 stream grab sample collection point 1 at Upper Lookout - **MR** — HF028 stream grab sample collection point at McRae Creek - **LO5** — HF028 stream grab sample collection point 5 at Upper Lookout - **MC** — HF028 stream grab sample collection point at Mack Creek - **LC** — HF028 stream grab sample collection point at Longer Creek - **NC** — HF028 stream grab sample collection point at Nostoc Creek - **LO3** — HF028 stream grab sample collection point 3 at Upper Lookout - **LO4** — HF028 stream grab sample collection point 4 at Upper Lookout