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Dominant wind is from the north or . During the July 2006 experiment, pit samples were significantly enriched in 226Ra above surf zone activities, consistent with a groundwater 226Ra source (t=3.47; p=0.0014). Menlo Park: USGS. From wetsuit rentals to surfboards, kayaks, bicycles, SUPs and boogie boards, we've got all you need to get out the door in a jiffy so you can enjoy the natural beauty of the area. Dean. These data are used to explore correlative relationships between waves and SGD. 2009. Google Scholar. This research was supported by the National Sea Grant College Program of the US Department of Commerces National Oceanic and Atmospheric Administration under NOAA Grant NA04OAR4170038, Project R/CZ-197, through the California Sea Grant College Program. Most visited spots in United States of America. If groundwater discharge at the shoreline is the major source of radium to the nearshore, then it follows that tracer activities should show a decreasing trend from groundwater to nearshore to offshore waters. Tidal stage (meters) relative to mean sea level, daily tidal range (meters), and corrected breaker heights for both the July 2006 and March 2007 studies. If the wave height above 1,5 meter (4 ft 9 in) swimming is forbidden. From Highway 101, take Highway 1 north toward Stinson Beach. Breakers with heights typically in the range of 0.5 to 2m result primarily from northwest swells during winter and a combination of northwest and south swells in summer. de Sieyes, N.R., K.M. Breaking wave symbols delineate the outer limits of the surf zone box, and the surf zone width in meters is shown for each experiment. Find out how to interpret a California milepost marker so you're prepared. Has submarine groundwater discharge been overlooked as a source of mercury to coastal waters? In other words, SGD from the short 200-m stretch of Stinson Beach where our experiments were conducted was responsible for a nutrient flux approximately equal to the total creek-associated flux of phosphate and dissolved inorganic nitrogen discharged within 6km of the study site in March 2007. Get the latest Stinson Beach surf report including local surf height, swell period, wind and tide charts. Score access to long-range surf forecasts, and ad-free web cams with Magicseaweed Pro . The role played by SGD in the Bolinas Lagoon ecosystem, which has itself been recognized as an internationally significant ecological resource, should be a focus of future research. 12am 06am 12pm 06pm. The arrival of large swell events at the beach in winter appeared to increase radium-enriched SGD to the surf zone. Statistical results were deemed significant if p<0.05. Pass the Muir Beach cutoff point and go . Nicholas R. de Sieyes. The wind direction is predicted to be cross-onshore. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Bolinas Lagoon, San Francisco Bay, upwelling, and hydrothermal springs may all be substantial sources of 226Ra to the coastal ocean. It is based on 3472 NWW3 model predictions since 2006 (values every 3 hours). Numerous lines of evidence support the use of the two short-lived radium isotopes 223Ra and 224Ra as tracers of beach groundwater flow to the ocean. Offshore and surf zone samples are open circles, groundwater samples including pits, seeps, and monitoring wells are filled circles, Bolinas Lagoon samples are open boxes, and the hot spring is a filled box. Surface velocities were converted to a depth-averaged velocity using a correction factor of 0.85 and multiplied by cross-sectional area to calculate flow rate. From wetsuit rentals to surfboards, kayaks, bicycles, SUPs and boogie boards, we've got all you need to get out the door in a jiffy so you can enjoy the natural beauty of the area. Clean, triple-rinsed 20-L collapsible low-density polyethylene containers were used for water collection. Nutrient concentrations for all sample groups are reported in Table1. A survey of local creeks was conducted during the March 2007 experiment in order to provide an estimate of total creek-associated nutrient flux during the wet season for comparison with SGD-associated nutrient flux estimates (Table3). All samples were analyzed for the two short-lived radium isotopes 223Ra and 224Ra (Table1). Windfinder specializes in wind, waves, tides and weather reports & forecasts for wind related sports like kitesurfing, windsurfing, surfing, sailing, fishing or paragliding. 226Ra was enriched in offshore waters relative to surf zone waters at the site, indicating shoreline groundwater discharge was not the sole source of 226Ra to the nearshore. Activities of the longer-lived isotope 223Ra in the surf zone were not significantly different between the two experiments, but 224Ra activities in the surf zone were significantly lower during the March 2007 experiment relative to July 2006 by 22%. In both graphs, the area of any colour is proportional to how frequently that size swell was forecast. Stinson Beach surf forecast is for near shore open water. SBS+K Errors associated with radium analysis via this method are 10% (Moore 2003). The tidal regime at Stinson Beach is mixed semidiurnal. End result is 3-4 ft surf with a dominant wave period of 9 seconds. Moore, W.S., and R. Arnold. Differences between offshore 223Ra and 224Ra activities during the two studies were insignificant. The authors acknowledge Karen Knee and Eric Foote for assistance in the field and/or suggestions for improving the manuscript. Those estimates are a factor of two to three higher than the median radium-based discharge rates reported here for the dry season. Open seawater is relatively radium deplete; therefore, radium activity above that of open seawater suggests a coastal source that in many cases is groundwater. Moore. (please call cell). Best around high tide. The same relationship was true for 224Ra in March 2007, but differences in 223Ra were not statistically significant. 2009. The sun rose at 5:52am and the sunset will be at 8:37pm. Huettel, M., W. Ziebis, and S. Forster. 1999. The Naked Truth California Stinson Beach US 101 source: Bing 28 views Mar 26, 2022 04:18am Of course, if you're going to dive in to California's time-honored tradition of . Journal of Hydrology 222: 165184. SGD estimates were significantly greater in March 2007 than in July 2006 based on both 223Ra (t=40.5, p<1010) and 224Ra (t=38.7, p<1010). It should be noted that Eq. Sonderegger. Latest photos from Stinson Beach. However, samples collected during subsequent experiments at the Stinson Beach site showed that 228Th-supported 224Ra activity accounts for approximately 3% or less of the original 224Ra activity (Black et al. Santos, I.R., W.C. Burnett, J. Chanton, N. Dimova, and R.N. Water quality is generally good at Stinson Beach, but in case you're concerned, you can. At low-low tides only, groundwater immediately adjacent to the water line was sampled from shallow pits dug into the beach approximately 10m back from the water line (n A March 2007 water sample from the hot spring located on the shoreline approximately 1.8km from the research site contained very high 226Ra activities of 148dpm (100L)1, approximately an order of magnitude above that of beach groundwater. Vehicles over 35 feet long are not advised on this route. If youd like to make an inquiry via the web, please submit this contact form. If you want to go surfing, check the surf report here. prism was calculated from these characteristics. Sunny with pleasantly warm air temperatures (feels like 20.0 C) at Stinson Beach, yet the sea remains several degrees colder than the air. About California, North. However, offshore samples were also significantly enriched in 226Ra above surf zone activities (tJul06=3.97; p<103), inconsistent with a coastal groundwater source (Fig. Groundwater at the site is contaminated with nitrogen (nitrate and ammonium, primarily), orthophosphate, and human fecal bacteria from septic systems, and previous research at the site has documented nutrification of the nearshore coastal ocean by fresh SGD in the summer (de Sieyes et al. votes. prism, groundwater end member A Our results indicate median groundwater discharge rates of 6 to 8L min1 m1 in July 2006 and 38 to 43L min1 m1 in March 2007. Easy, take Highway 1 from 101 and follow the signs. Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing). Stinson Beach Surf Report & Forecast Stinson Beach is definitely not a core surf scene, but some fun peaks can be had along this crescent of white sand. The negative correlations in the summer experiment suggest either reduced discharge during periods of higher breaking waves, increased cross-shore mixing with radium-poor offshore waters, or both. First-order estimates of flow rate in each creek were measured via the float method (Weight and Sonderegger 2001) whereby velocity is measured by timing the travel of a float down a straight reach of a creek. Stinson Beach long range surf forecast for swell, wind, tide and weather conditions updated multiple times daily. San Francisco: Philip Williams & Associates. During each of 100,000 iterations, the model calculated D from random, normally distributed radium activities for the surf zone prism A There was a non-fatal shark attack on a bodyboarder here in August 1998. Limnology and Oceanography 51: 343348. 224=0.26, p=0.0022). Effects of surface-water movement on seepage-meter measurements of flow through the sedimentwater interface. Charette, C.H. 2008. Interactive Stinson Beach surf break location map. Because flow in this lagoon is dominated by tidal exchange (Philip Williams & Associates 2005; Ritter 1973), we can assume that residence time therein likely remains approximately stable on the seasonal timescale. You are not a drop in the ocean. Glass containers are not allowed on the beach. Stinson Beach, CA Weather Forecast | AccuWeather Current Weather 1:24 AM 56 F RealFeel 52 Air Quality Excellent Wind SW 9 mph Wind Gusts 14 mph Mostly cloudy More Details Current Air. Moore, W.S. In comparison, Bolinas Lagoon waters contained significantly less of each isotope than groundwater samples from pits during the July 2006 experiment. 1998. A new method for the rapid measurement of 224Ra in natural waters. Given that the 223Ra and 224Ra activities were lower in Webb Creek than in offshore waters, they very likely do not contribute significant short-lived radium isotopes to the nearshore. . Pearson, J.M., I. Guymer, J.R. West, and L.E. Total creek-associated nutrient flux ( standard deviation) in March 2007 was estimated at 103mmol min1 phosphate, 41mol min1 silicate, and 20050mmol min1 dissolved inorganic nitrogen. 2). During the March 2007 experiment when breaker height was larger and more variable compared to the summer, surf zone activities of the short-lived isotope 224Ra were significantly positively correlated with breaker height. A similar comparison was made for each experiment to investigate the correlation between average daily breaker height on surf zone radium activity. 2005. Bring your drinks in plastic or bring plastic containers to transfer into when you arrive. Due to interactions between multiple forcing mechanisms at any given location and time, SGD is temporally and spatially variable. Marine Chemistry 65: 111125. Specifically, the radium activities incorporated in each model run were chosen based on standard deviations about mean radium activities for each sample group. See houses for approximate scale. Read More A short description of local hydrogeology and human development in the area can be found elsewhere (de Sieyes et al. Statistical analysis was performed using Matlab (Natick, MA, USA). Proceedings of the Royal Society of London A 390: 283291. For booking, call or text Measurement of Ra-224 and Ra-226 activities in natural waters using a radon-in-air monitor. What You Need to Know Before You Go to Stinson Beach, Find out how to interpret a California milepost marker, There is no entrance fee and no parking fee. Barry. This feature requires a Premium Membership. Moore, W.S. 2009; Li et al. This relationship is consistent with increased wave-driven SGD during large winter swell events. While increases in tidally pumped groundwater during periods of increased tidal range are consistent with the numerical simulations of others (Ataie-Ashtiani et al. Correspondence to This interpretation is consistent with results from other studies documenting tidal pumping (Boehm et al. Stinson isn't the only beach in Marin County. Seven synoptic breaker height observations were made in the field using surfers riding breaking waves as benchmarks, a commonly used method for estimating breaker height (Caldwell 2005). Burnett, W.C., et al. Today, many surfers would wear a spring wetsuit. Lockington. The lagoon was enriched in 226Ra relative to offshore waters in March 2007 (t=3.23; p=0.0042) but not in July 2006 (tMar07=1.19, p=0.24). The rose diagram shows the distribution of swell sizes and directions, while the graph at the bottom shows the same thing but lacks direction information. Well do our best to be in touch within 24 hours. To find one that's just right for you, check theguide to Marin County's Best Beaches. 2004; Paytan et al. Bolinas. Volker, and D.A. On 16 and 17 March 2007, creeks flowing within 6km of the site were surveyed for flow rate and nutrient concentration to provide estimates of creek-associated nutrient flux to the local coastal ocean. 2). 3. It may also be one of the area's busiest beaches, with all of its many parking spots filling up on any weekend when the weather is warm. SGD from 200m of Stinson Beach in March 2007 contributed a flux of phosphate and dissolved inorganic nitrogen approximately equal to that associated with all local creeks and streams within 6km of the study site at that time. Get extended tides with Access tide tables for thousands of spots worldwide for +/- 30 years Get Pro About the Tides for Stinson Beach Tidal port for Stinson Beach is Bolinas Lagoon, California - 2.59km away. We define spring and neap tide as those days during the tidal cycle when tidal range is maximal and minimal, respectively. Medium-long period swell from the WNW mixing with long period swell from the SSW get reinforcement from WNW wind swell. Hourly Forecast 12 Day Forecast Maps Wave Height Wave Energy Wind Live Live Weather Surf Webcam Wave Buoys Weather State Tides Surf/Wind Alert Water Temperature Spot Information Spot Guide Reviews & Ratings (1) Photos (1) All swells (any wind direction) January February March April May June July August September October November December Summer Bolinas Lagoon Ecosystem Restoration Feasibility Project. Significant negative correlations were observed between breaker height and activities of 223Ra or 224Ra in the surf zone during the July 2006 experiment, with breaker height explaining 44% and 43% of activity for the two isotopes, respectively. Run in that direction. Tends to receive distant groundswells and the best swell direction is from the southwest. Tidal effects on submarine groundwater discharge into the ocean. Advances in Water Resources 30: 851865. During the March experiment, a 30-mL aliquot of water was 0.2m PES filtered (Millipore, Billerica, MA, USA) and stored at 20C for nutrient analyses. 1). 2008). From 1:15pm to 2:15pm Moonrise Click here to see Stinson Beach Park's fishing times for the week. Point Reyes (north) 4 . Limnology and Oceanography 46: 465470. groundwater, and offshore end member A Hydrogeology Journal 2: 4954. Tide stage, daily calculated tide ranges, observed breaker heights, and times of surf zone and offshore sampling events are shown for both experiments in Fig. 1/2=3.6days) and the long-lived isotope 226Ra (t Lo). Boehm et al. Get the latest Stinson Beach surf report including local surf height, swell period, wind and tide charts. Michael, H.A., A.E. We acknowledge comments from the editor, associate editor, and two reviewers that improved the manuscript. According to Stinson Beach County Water District records, 2.1 and 24.7cm of rainfall had fallen in the 3months prior to the July 2006 and March 2007 studies, highlighting the Mediterranean climate at the site. Limnology and Oceanography 51: 18761886. Given the expected role of waves in driving groundwater flow (larger waves, larger setup, and thus larger wave pumped SGD), our results suggest that, during summer when breaker height is comparatively small, the net effect of increased breaker height is increased mixing with radium-poor offshore waters rather than decreased discharge. Rainfall during the actual experiments themselves was slight, with only 0.05 and 0.3cm falling during the July 2006 and March 2007 studies, respectively. The decrease in activity from groundwater to surf zone and Bolinas Lagoon waters to offshore waters is consistent with the conceptual model of a groundwater tracer source discharging in this setting. Some wave-magnet breaks may still work though if conditions are right (on occasion). Pronstico del oleaje Stinson . 2002. The survey included creeks flowing to Bolinas Lagoon (n=11) as well as those discharging directly to the ocean (n=1). You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. 2), and prism cell volume V The two transects were located 100m apart in the alongshore direction and extending from the water line out into the surf zone (Fig. . Gonneea. 6. Based on The hot spring sample collected in March 2007 (148dpm (100L)1) is not shown. Higher tides work best. Submarine groundwater discharge and associated chemical input to a coastal sea. Ebb flow from Bolinas Lagoon was enriched in 223Ra and 224Ra relative to offshore waters during both experiments (Table2; Fig. 2-3 FT. No cam. 16-day surf forecast for Stinson Beach in Marin County. In order to standardize sample collection depth, 0.2 and 0.7m heights were noted on the legs of the two individuals who conducted all surf zone sampling. For both the July 2006 and March 2007 studies, 223Ra and 224Ra activities collected from pits along the two transects were not significantly different (0.34p0.90), suggesting groundwater activities are relatively homogeneous at this spatial scale. Table - waves today at Stinson Beach. 1) is an open ocean, southwest facing, reflective beach with mixed semidiurnal tides, a spring tide range of 2.0 to 2.5m, and a high-energy surf zone. 5) but not during the March 2007 experiment when only two seepage face samples were collected. 2006; Huettel et al. A Location of Stinson Beach within California. 2003. Nutrient biogeochemistry in a Gulf of Mexico subterranean estuary and groundwater-derived fluxes to the coastal ocean. Breaker heights calculated from buoy data following Komar (1998) were compared with observations made in the surf zone, as described in the Methods and Materials section. This study highlights the importance of groundwater quality protection in areas such as Stinson Beach and nearby Bolinas Lagoon, where SGD-associated nutrient flux can be a major component of the local marine biogeochemical budget. Dissolved radium was extracted from 100L water samples in the field by filtering through columns of MnO2-impregnated acrylic fiber at a flow rate not exceeding 1L min1 (Moore and Arnold 1996; Rama et al. Kim, G., and D.W. Hwang. Submarine groundwater discharge into Venice Lagoon, Italy. Seasonal oscillations in water exchange between aquifers and the coastal ocean. 3). Just so you know, great white shark attacks have occurred at Stinson Beach. You can find it by watching the mileage markers if you know how. 1987). Similarly, the surf zone was significantly enriched in both radium isotopes compared to offshore waters during both experiments. 223,Jul06=1.28, p=0.20). This difference is driven mathematically by seasonal differences in radium activities and surf zone volume (V 1980. During the dry season, Bolinas Lagoon (37.908N, 122.682W) and a local coastal hot spring (37.886N, 122.630W), are the only other potential sources of radium within 20km of the study site (Fig. To test the role of tide level in explaining radium variability in the surf zone, the four samples collected in the surf zone during each low-tide sampling event were grouped and compared by paired t test to the corresponding four samples collected during the previous high tide. 2004; de Sieyes et al. During each sampling at the site, surf zone samples were collected along each transect at 0.2 and 0.7m water depths referred to as ankle and waist depths, respectively (Fig. All samples were analyzed for 223Ra and 224Ra. Hours: 9:30 a.m.6 p.m. weekends, Summer offers the best conditions for surfing. No fires or grills are allowed on the beach, but you'll find barbecue grills in the picnic area. 2). Click the buoys or wind icon to view more information. 3). Saturday 1 July 2023, 9:08AM PDT (GMT -0700). The model also used a wide range of surf zone residence times, 1 to 4h, reflecting the uncertainty of that model input for the surf zone at the field site. The Komar-estimated significant wave heights were multiplied by the correction factor to obtain a continuous time series of significant breaker heights. Because wind determines whether or not waves are good for surfing at Stinson Beach, you can select a similar diagram that shows only the swells that were predicted to coincide with glassy or offshore wind conditions. Stinson Beach is definitely not a core surf scene, but some fun peaks can be had along this crescent of white sand. Some people like to bring a small tent to set up on the beach, to get out of the sun when they need to. A comparison of our radium-derived SGD estimates with those from locations with similar climates (Southern California and Israel) indicates our estimates are within the range of those previous reported. 1996; Libelo and McIntyre 1994). Standard deviations of nutrient flux are calculated by propagating standard deviations of nutrient concentration and flow rates. Unfortunately, to the best of our knowledge, no published values exist for these parameters, and such a calculation is not possible at this time. The geometry of the surf zone box is shown as a gray prism. Q1, Q2, and Q3 are the first, second, and third quartiles of discharge estimates, respectively. votes. You can also find places to eat nearby. Groundwater discharge: Potential association with fecal indicator bacteria in the surf zone. Wave set-up, percolation and undertow in the surf zone. 1998. : Assessing the driving forces of submarine groundwater discharge at a coastal site in the Gulf of Mexico. (2008). The subterranean estuary: A reaction zone of ground water and sea water. Mar07=14; Fig. Reflecting the order-of-magnitude nature of our measurements, we conservatively assume 25% standard deviation associated with these flow rate measurements (Rantz 1982). In such environments, it is often necessary to estimate SGD by indirect techniques, such as those based on chemical tracers. Add our tides app to your iOS or Android device, Copyright 2023. 1996. In the main figure, the locations of ankle, waist, and pit samples, as are the monitoring wells and location of the rip current flowing between the two surf zone transects. The following equation was then used to estimate total groundwater discharge volume per unit length of shoreline D using a Monte Carlo approach: where is the cross-shore residence time of water in the rip cell. Surf Reports Stinson Beach Surf + Kayak Outfitting Stinson & Bolinas since 1998 See More Say hello, grab and go! Tidal range correlated significantly with 223Ra and 224Ra activity in the surf zone suggesting that the magnitude of discharge is controlled to some degree by the tidal range, with maximal discharge occurring during spring tide. Sources and fluxes of submarine groundwater discharge delineated by radium isotopes. 2000b. 1/2=1,600years) to investigate how SGD at a wave-dominated California beach is modulated by semidiurnal tides, fortnightly neap-spring tides, swell events, and the seasonal precipitation cycle. In March 2007, a single sample collected from Webb Creek, the only major creek in the area discharging directly to the ocean, contained 223Ra and 224Ra activities of 0.5 and 4.3dpm (100L)1, respectively. The mass balance assumes that all radium in the surf zone is derived from beach groundwater and not from other sources including Bolinas Lagoon, upwelled seawater, or San Francisco Bay. Interactive Porthcawl Point location map. Stinson Beach's Tide Charts, Tides for Fishing, High Tide and Low Tide tables - Marin County - California - United States - 2023 - Tideschart.com United States tide charts California tide charts Marin County tide charts Stinson Beach tide chart Stinson Beach tide charts for today, tomorrow and this week Coates. 1/2=11days) and 224Ra (t Estuaries and Coasts 34, 256268 (2011). Taniguchi, M. 2002. Submarine groundwater discharge of total mercury and monomethylmercury to Central California coastal waters. 224,Jul06=2.24, p=0.028; t 2008). Santos, I.R., W.C. Burnett, J. Chanton, B. Mwashote, I. Suryaputra, and T. Dittmar. The second nearest airport to Stinson Beach is Metropolitan Oakland International Airport (OAK), also in USA, 42 km (26 miles) away. Geophysical Research Letters 29: 1678. Upper Saddle River: Prentice Hall. A mass balance of excess radium in the surf zone was used to estimate SGD for each season, confirming larger discharge rates during the wet season. By comparison, during the March 2007 experiment, 226Ra activities in pit and surf zone samples were not significantly different (t=0.85; p=0.40), but the surf zone was enriched relative to offshore waters (tMar07=2.68; p=0.012). Provided by the Springer Nature SharedIt content-sharing initiative, Submarine Groundwater Discharge to a High-Energy Surf Zone at Stinson Beach, California, Estimated Using Radium Isotopes, $$ D = \left( {\frac{{{A_{\rm{prism}}} - {A_{\rm{offshore}}}}}{{{A_{\rm{groundwater}}}}}} \right)\frac{{{V_{\rm{prism}}}}}{{L\tau }} $$, https://doi.org/10.1007/s12237-010-9305-2, https://creativecommons.org/licenses/by-nc/2.0. 2001). Local knowledge of the site coupled with aerial observations from a high vantage point during each study confirmed the permanence of the rip cell location. Windswells work wonders here. Many of the mechanisms that modulate SGD have been investigated numerically and through field studies. Surf stats for Stinson Beach, see the swell variation by month or season on the history page here. Numerical and experimental study of seepage in unconfined aquifers with a periodic boundary condition. The wilder cousin of it's softer southerly relatives, Northern California is cold, rugged, sharky and holds some of great surf but be prepared to battle against big waves and strong winds. PubMedGoogle Scholar. Response of coastal groundwater table to offshore storms. Swells: Height . Elsinger, R.J., and W.S. Tides along this coast are in phase at a spatial scale of 30km, so this tide gauge gives excellent tide data for Stinson Beach. 2001), we cannot discount this possibility. These observations were compared to the continuous time series, and a correction factor was derived using linear regression. 2004; Longuet-Higgins 1983). Butts, and W.S. Jul06=17 and n 223,Mar07=2.57, p=0.01; t Robinson, C., L. Li, and D.A. 2005. 2001. Surf Webcam Wave Buoys Weather State Tides Surf/Wind Alert Water Temperature Spot Information Spot Guide Reviews & Ratings (1) Photos (1) Today's tide times for Bolinas Lagoon, California ( 1.9 miles from Stinson Beach) Next high tide in Bolinas Lagoon, California is at 8:02 PM, which is in 8 hr 26 min 45 s from now. Marin County Surf Report & Forecast - Map of Marin County Surf Spots & Cams - Surfline Multi-cam North End 1-2 FT 15th Street Pier 1-2 FT Croatan Jetty 2-3 FT Croatan to Pendleton 1-2 FT. Results of the surf zone mass balance are reported in Fig. Data were recorded at 6-min intervals. Volker, and D.A. Continental Shelf Research 20: 19932007. Photo Home. Unless otherwise noted, summarized data reported in the text are average standard deviation. Waves usually considered too small for good surf. Submarine Groundwater Discharge to a High-Energy Surf Zone at Stinson Beach, California, Estimated Using Radium Isotopes. 2006. Stinson Beach is definitely not a core surf scene, but some fun peaks can be had along this crescent of white sand. Wind stats for Stinson Beach, see the variation in direction and stength by month or season on the history page here. Fibers were then moistened with deionized water to obtain constant recoil efficiency, sealed in an air-tight helium-flushed glass tube, and incubated for at least 3weeks to allow in-growth of 222Rn daughter product to reach activities within 0.1% of secular equilibrium. A 1-L subsample was collected into a clean triple-rinsed bottle and used for all nonradium chemical analyses. Sometimes crowded. Daily tidal range was calculated from daily maxima and minima. Compare Stinson Beach with another surf break, 2023 Snow-Forecast.com | Terms of Service | Privacy | Cookie Policy. Sampling locations at Stinson Beach. These were forecast only 72% of the time. 1). The tide is currently rising in Stinson Beach Park. Two 14-day experiments conducted in the dry summer (July 2006) and wet winter (March 2007) seasons, respectively, examined tidal, wave-driven, and seasonal variability of submarine groundwater discharge (SGD) at Stinson Beach, CA, using natural radium tracers. Limnology and Oceanography 53: 14341445. Lockington. 2004). 2006.